1. Q1Open question

    Dalton's atomic theory successfully explained: i. Law of conservation of mass ii. Law of constant composition iii. Law of radioactivity iv. Law of multiple proportions

    1. ii, iii and iv
    2. i, ii and iii
    3. i, ii and iv
    4. i, iii and iv
    Show answer & explanation

    Answer: (C) i, ii and iv

    Explanation

    Dalton's indivisible-atom theory explained the laws of chemical combination, not radioactivity (which shows atoms can break down).

    • (A) Incorrect

      Wrong: radioactivity was discovered later and contradicts indivisible atoms.

    • (B) Incorrect

      Wrong: Dalton's theory could not explain radioactivity.

    • (C) Correct

      Correct: the theory explained conservation of mass, constant composition and multiple proportions.

    • (D) Incorrect

      Wrong: radioactivity is not explained by it.

  2. Q2Open question

    Which of the following is a technopolis?

    1. Silicon Valley
    2. London
    3. Paris
    4. Moscow
    Show answer & explanation

    Answer: (A) Silicon Valley

    Explanation

    A technopolis is a city or region centred on high-tech industry and research, e.g. Silicon Valley.

    • (A) Correct

      Correct: Silicon Valley is the classic high-tech research and industry hub.

    • (B) Incorrect

      Wrong: a global financial capital, not described as a technopolis.

    • (C) Incorrect

      Wrong: a cultural/political capital.

    • (D) Incorrect

      Wrong: a political capital.

  3. Q3Open question

    Which of the following acids is secreted in the stomach?

    1. Sulphuric acid
    2. Nitric acid
    3. Phosphoric acid
    4. Hydrochloric acid
    Show answer & explanation

    Answer: (D) Hydrochloric acid

    Explanation

    Gastric juice contains HCl secreted by the parietal (oxyntic) cells.

    • (A) Incorrect

      Wrong: not produced in the body.

    • (B) Incorrect

      Wrong: not produced in the stomach.

    • (C) Incorrect

      Wrong: not secreted by the stomach.

    • (D) Correct

      Correct: parietal cells secrete HCl, which activates pepsin and kills germs.

  4. Q4Open question

    Which ruler ruled Assam (Kamarupa) in the time of Harsha?

    1. Aswad Jahan
    2. Bhaskar Varman
    3. King Dahir
    4. More than one of the above
    Show answer & explanation

    Answer: (B) Bhaskar Varman

    Explanation

    Bhaskaravarman of the Varman dynasty ruled Kamarupa and allied with Harsha against Shashanka.

    • (A) Incorrect

      Wrong: not a Kamarupa ruler.

    • (B) Correct

      Correct: Bhaskaravarman of Kamarupa was Harsha's ally.

    • (C) Incorrect

      Wrong: Dahir ruled Sindh (defeated by the Arabs in 712).

    • (D) Incorrect

      Wrong: only Bhaskar Varman fits.

  5. Q5Open question

    When was the undersea cable-based Chennai–Andaman and Nicobar (CANI) Project inaugurated and dedicated to the nation by PM Narendra Modi?

    1. 15 August 2022
    2. 10 August 2019
    3. 26 January 2023
    4. 10 August 2020
    Show answer & explanation

    Answer: (D) 10 August 2020

    Explanation

    The 2,312 km CANI optical fibre cable brought high-speed internet to the Andaman & Nicobar Islands in August 2020.

    • (A) Incorrect

      Wrong: the project was dedicated in 2020.

    • (B) Incorrect

      Wrong: one year too early.

    • (C) Incorrect

      Wrong: the project was dedicated in 2020.

    • (D) Correct

      Correct: PM Modi inaugurated the CANI submarine cable on 10 August 2020.

  6. Q6Open question

    The meter used to measure the distance travelled by a vehicle is known as:

    1. Ammeter
    2. Speedometer
    3. Chronometer
    4. Odometer
    Show answer & explanation

    Answer: (D) Odometer

    Explanation

    The odometer measures distance; the speedometer measures speed.

    • (A) Incorrect

      Wrong: measures electric current.

    • (B) Incorrect

      Wrong: measures speed.

    • (C) Incorrect

      Wrong: measures time precisely.

    • (D) Correct

      Correct: an odometer records distance travelled.

  7. Q7Open question

    Which Amendment to the Constitution abolished the two seats reserved for the Anglo-Indian community in the Lok Sabha?

    1. 108th
    2. 100th
    3. 102nd
    4. 104th
    Show answer & explanation

    Answer: (D) 104th

    Explanation

    The 104th Amendment Act, 2019 discontinued Anglo-Indian nominations to the Lok Sabha and state assemblies from January 2020.

    • (A) Incorrect

      Wrong: the 108th was a women's reservation bill number, not this.

    • (B) Incorrect

      Wrong: the 100th dealt with the India–Bangladesh land boundary.

    • (C) Incorrect

      Wrong: the 102nd gave constitutional status to the NCBC.

    • (D) Correct

      Correct: the 104th Amendment (2019) ended Anglo-Indian nomination and extended SC/ST reservation.

  8. Q8Open question

    What should come in place of the question mark (?) in the following figures? Figure 1: upper pair 16, 21; lower pair 15, 10; centre 36 Figure 2: upper pair 7, 10; lower pair 13, 10; centre 16 Figure 3: upper pair ?, 15; lower pair 21, 14; centre 64

    1. 22
    2. 18
    3. 36
    4. 20
    Show answer & explanation

    Answer: (A) 22

    Explanation

    In each figure the cross sums match (16+15 = 21+10) and the centre is (pair difference + 1)². For figure 3, ? + 14 = 15 + 21 = 36, so ? = 22.

    • (A) Correct

      Correct: centre = (difference + 1)²; 64 = 8² gives difference 7, so ? = 15 + 7 = 22 (also ? + 14 = 15 + 21).

    • (B) Incorrect

      Wrong: 18 + 14 = 32 ≠ 36.

    • (C) Incorrect

      Wrong: does not fit the pattern.

    • (D) Incorrect

      Wrong: 20 + 14 = 34 ≠ 36.

  9. Q9Open question

    Which of the following ports is an artificial port?

    1. Marmugao
    2. Mumbai
    3. Kochi
    4. Chennai
    Show answer & explanation

    Answer: (D) Chennai

    Explanation

    Chennai port was built artificially on a straight coast; Mumbai, Kochi and Marmugao are natural harbours.

    • (A) Incorrect

      Wrong: a natural harbour in Goa.

    • (B) Incorrect

      Wrong: a natural deep-water harbour.

    • (C) Incorrect

      Wrong: a natural harbour (lagoon).

    • (D) Correct

      Correct: Chennai is one of India's oldest artificial harbours.

  10. Q10Open question

    How many members of the UN Security Council either rejected or abstained from voting on the proposal to admit Palestine as a full UN member in April 2024?

    1. 6
    2. 2
    3. 3
    4. 5
    Show answer & explanation

    Answer: (C) 3

    Explanation

    On 18 April 2024 the draft got 12 votes in favour; the US vetoed and the UK and Switzerland abstained.

    • (A) Incorrect

      Wrong: 12 members voted in favour, leaving 3.

    • (B) Incorrect

      Wrong: the US vetoed and two members abstained: 3 in all.

    • (C) Correct

      Correct: the US voted against (veto); the UK and Switzerland abstained.

    • (D) Incorrect

      Wrong: only 3 did not vote yes.

  11. Q11Open question

    In the Union Budget speech for 2024-25, which oilseed was NOT among those named under the goal of 'Atmanirbharta' (self-reliance)?

    1. Sesame
    2. Coconut
    3. Soybean
    4. Groundnut
    Show answer & explanation

    Answer: (B) Coconut

    Explanation

    Budget 2024-25 set a strategy for self-reliance in mustard, groundnut, sesame, soybean and sunflower.

    • (A) Incorrect

      Wrong: sesame was named in the mission.

    • (B) Correct

      Correct: the budget named mustard, groundnut, sesame, soybean and sunflower, not coconut.

    • (C) Incorrect

      Wrong: soybean was named.

    • (D) Incorrect

      Wrong: groundnut was named.

  12. Q12Open question

    Sheikh Ahmad Abdullah al-Ahmad al-Sabah was appointed as the new Prime Minister of which country in April 2024?

    1. Palestine
    2. Yemen
    3. Lebanon
    4. Kuwait
    Show answer & explanation

    Answer: (D) Kuwait

    Explanation

    The al-Sabah family rules Kuwait; Sheikh Ahmad Abdullah was appointed PM by the Emir in April 2024.

    • (A) Incorrect

      Wrong: al-Sabah is Kuwait's ruling family.

    • (B) Incorrect

      Wrong: not Yemen.

    • (C) Incorrect

      Wrong: not Lebanon.

    • (D) Correct

      Correct: he was named Kuwait's Prime Minister in April 2024.

  13. Q13Open question

    Match the following in the context of the Ashta Pradhan system of the Maratha rulers: a. Sachiva b. Peshwa c. Sumant d. Amatya 1. Prime Minister 2. In-charge of correspondence 3. Finance Minister 4. Foreign Minister

    1. a-2, b-1, c-4, d-3
    2. a-1, b-2, c-3, d-4
    3. a-3, b-4, c-1, d-2
    4. More than one of the above
    Show answer & explanation

    Answer: (A) a-2, b-1, c-4, d-3

    Explanation

    Shivaji's Ashta Pradhan: Peshwa (PM), Amatya (finance), Sachiva (royal correspondence), Sumant (foreign affairs), among others.

    • (A) Correct

      Correct: Sachiva–correspondence, Peshwa–PM, Sumant–foreign affairs, Amatya–finance.

    • (B) Incorrect

      Wrong: the Peshwa was the Prime Minister, not the Sachiva.

    • (C) Incorrect

      Wrong: most pairs are wrong.

    • (D) Incorrect

      Wrong: only code A is correct.

  14. Q14Open question

    According to the IIP data of MoSPI, which indices experienced significant growth in FY 2023?

    1. Consumer goods and infrastructure/construction goods
    2. Consumer goods and capital goods
    3. Manufacturing and consumer goods
    4. Capital goods and infrastructure/construction goods
    Show answer & explanation

    Answer: (D) Capital goods and infrastructure/construction goods

    Explanation

    Public capex drove strong FY23 growth in capital goods and infrastructure/construction goods.

    • (A) Incorrect

      Wrong: consumer goods growth was weak in FY23.

    • (B) Incorrect

      Wrong: consumer goods did not grow significantly.

    • (C) Incorrect

      Wrong: these were not the standout indices.

    • (D) Correct

      Correct: capital goods (~13%) and infrastructure goods (~8%) grew strongly, reflecting investment.

  15. Q15Open question

    Heat transfer that does not require a medium is called:

    1. Radiation
    2. Reflection
    3. Conduction
    4. Convection
    Show answer & explanation

    Answer: (A) Radiation

    Explanation

    Radiation needs no medium, which is how the Sun's heat reaches Earth.

    • (A) Correct

      Correct: radiation travels as electromagnetic waves, even through vacuum.

    • (B) Incorrect

      Wrong: not a mode of heat transfer.

    • (C) Incorrect

      Wrong: needs a material medium (mostly solids).

    • (D) Incorrect

      Wrong: needs a fluid medium.

  16. Q16Open question

    Which type of rock is formed from the cooling and solidification of lava?

    1. Igneous
    2. Sedimentary
    3. Crystal
    4. Metamorphic
    Show answer & explanation

    Answer: (A) Igneous

    Explanation

    Lava cools to form extrusive igneous rocks such as basalt.

    • (A) Correct

      Correct: igneous rocks form from cooled magma/lava (e.g. basalt).

    • (B) Incorrect

      Wrong: formed by deposition of sediments.

    • (C) Incorrect

      Wrong: not a rock type.

    • (D) Incorrect

      Wrong: formed by heat/pressure altering existing rocks.

  17. Q17Open question

    After the elections to the 18th Lok Sabha, who was appointed Union Minister of Textiles?

    1. Giriraj Singh (Begusarai)
    2. Bhupender Yadav (Alwar)
    3. Rajiv Ranjan Singh alias Lalan Singh (Munger)
    4. Gajendra Singh Shekhawat (Jodhpur)
    Show answer & explanation

    Answer: (A) Giriraj Singh (Begusarai)

    Explanation

    In Modi 3.0 (June 2024), Giriraj Singh received the Ministry of Textiles.

    • (A) Correct

      Correct: Giriraj Singh became Textiles Minister in June 2024.

    • (B) Incorrect

      Wrong: he got Environment.

    • (C) Incorrect

      Wrong: he got Panchayati Raj and Fisheries.

    • (D) Incorrect

      Wrong: he got Culture and Tourism.

  18. Q18Open question

    Which of the following human races inhabits China, Mongolia and Japan?

    1. Australoid
    2. Negro (Negroid)
    3. Mongoloid
    4. Nordic
    Show answer & explanation

    Answer: (C) Mongoloid

    Explanation

    Older racial classifications grouped East Asian populations as Mongoloid (now considered outdated by anthropologists).

    • (A) Incorrect

      Wrong: found in Australia and parts of South Asia.

    • (B) Incorrect

      Wrong: associated with Africa.

    • (C) Correct

      Correct: the traditional classification places East Asians in the Mongoloid group.

    • (D) Incorrect

      Wrong: associated with northern Europe.

  19. Q19Open question

    'Chach Nama' was translated into Persian by:

    1. Nuruddin Muhammad Aufi
    2. Shams-i-Siraj Afif
    3. Muhammad Ali bin Abu Bakr Kufi
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Muhammad Ali bin Abu Bakr Kufi

    Explanation

    Chach Nama, a history of the Arab conquest of Sindh, was rendered into Persian by Muhammad Ali Kufi.

    • (A) Incorrect

      Wrong: Aufi compiled Jawami-ul-Hikayat.

    • (B) Incorrect

      Wrong: he wrote Tarikh-i-Firoz Shahi.

    • (C) Correct

      Correct: Kufi translated the Arabic Chach Nama into Persian (c. 1216).

    • (D) Incorrect

      Wrong: only Kufi is correct.

  20. Q20Open question

    Which of the following represents the suitable condition for the liquefaction of gases?

    1. Low temperature, high pressure
    2. Low temperature, low pressure
    3. High temperature, high pressure
    4. High temperature, low pressure
    Show answer & explanation

    Answer: (A) Low temperature, high pressure

    Explanation

    Gases liquefy when cooled below their critical temperature and compressed.

    • (A) Correct

      Correct: cooling slows molecules and pressure pushes them together.

    • (B) Incorrect

      Wrong: low pressure keeps molecules apart.

    • (C) Incorrect

      Wrong: high temperature resists liquefaction.

    • (D) Incorrect

      Wrong: the opposite of what is needed.

  21. Q21Open question

    From which constituency was Mohan Charan Majhi, the new Chief Minister of Odisha, elected in the 2024 Assembly elections?

    1. Laikera
    2. Keonjhar
    3. Telkoi
    4. Hinjili
    Show answer & explanation

    Answer: (B) Keonjhar

    Explanation

    Mohan Charan Majhi, elected from Keonjhar, became Odisha's first BJP Chief Minister in June 2024.

    • (A) Incorrect

      Wrong: not his seat.

    • (B) Correct

      Correct: Majhi won the Keonjhar (ST) seat.

    • (C) Incorrect

      Wrong: not his seat.

    • (D) Incorrect

      Wrong: Hinjili was Naveen Patnaik's seat.

  22. Q22Open question

    To highlight the hardships faced by peasants, Sahajanand Saraswati published which newspaper?

    1. Lok Sangraha
    2. The Broken Wing
    3. Indian Nation
    4. Nirbal Sevak
    Show answer & explanation

    Answer: (A) Lok Sangraha

    Explanation

    Swami Sahajanand used Lok Sangraha to publicise illegal cesses, evictions and forced labour faced by tenants.

    • (A) Correct

      Correct: Sahajanand published the Hindi weekly Lok Sangraha to voice peasant grievances.

    • (B) Incorrect

      Wrong: a poetry collection by Sarojini Naidu.

    • (C) Incorrect

      Wrong: an English daily linked to the Darbhanga Raj.

    • (D) Incorrect

      Wrong: not associated with Sahajanand.

  23. Q23Open question

    How many times do the hands of a clock coincide in a day?

    1. 23
    2. 12
    3. 24
    4. 22
    Show answer & explanation

    Answer: (D) 22

    Explanation

    The minute hand gains 360° on the hour hand every 12/11 hours, so they meet 11 times per 12 hours.

    • (A) Incorrect

      Wrong: they coincide 11 times every 12 hours, so 22 in a day.

    • (B) Incorrect

      Wrong: that is roughly per 12 hours, and even then it is 11.

    • (C) Incorrect

      Wrong: the 11–1 o'clock coincidence is shared, so it is 22.

    • (D) Correct

      Correct: the hands meet 11 times in 12 hours, i.e. 22 times in 24 hours.

  24. Q24Open question

    Which of the following is an iron ore?

    1. Cinnabar
    2. Bauxite
    3. Limonite
    4. Pyrite
    Show answer & explanation

    Answer: (C) Limonite

    Explanation

    Iron ores: haematite, magnetite, limonite, siderite.

    • (A) Incorrect

      Wrong: ore of mercury (HgS).

    • (B) Incorrect

      Wrong: ore of aluminium.

    • (C) Correct

      Correct: limonite is a hydrated iron oxide ore.

    • (D) Incorrect

      Wrong: iron sulphide, mainly used for sulphur, not iron extraction.

  25. Q25Open question

    Who was the founder of the Faraizi Movement?

    1. Haji Shariatullah
    2. Sayyid Ahmad
    3. Dudhu Mian
    4. More than one of the above
    Show answer & explanation

    Answer: (A) Haji Shariatullah

    Explanation

    Haji Shariatullah founded the Faraizi movement; his son Dudhu Mian turned it against zamindars and indigo planters.

    • (A) Correct

      Correct: he founded the Faraizi movement in eastern Bengal (1818).

    • (B) Incorrect

      Wrong: Sayyid Ahmad of Rae Bareli led the Wahabi movement.

    • (C) Incorrect

      Wrong: his son, who later led and radicalised it.

    • (D) Incorrect

      Wrong: the founder was Haji Shariatullah alone.

  26. Q26Open question

    Where was the top Hamas leader Ismail Haniyeh assassinated on 31 July 2024, allegedly in an Israeli strike?

    1. Lebanon
    2. Palestine
    3. Iran
    4. Jordan
    Show answer & explanation

    Answer: (C) Iran

    Explanation

    Ismail Haniyeh was killed in Tehran, Iran on 31 July 2024.

    • (A) Incorrect

      Wrong: he was not killed in Lebanon.

    • (B) Incorrect

      Wrong: he was not killed in Gaza/West Bank.

    • (C) Correct

      Correct: he was killed in Tehran after attending the Iranian president's inauguration.

    • (D) Incorrect

      Wrong: not Jordan.

  27. Q27Open question

    According to a CRISIL Ratings report, India's corporate bond market is expected to grow to how much by FY 2030?

    1. ₹100–120 lakh crore
    2. ₹50–70 lakh crore
    3. ₹120–150 lakh crore
    4. ₹70–90 lakh crore
    Show answer & explanation

    Answer: (A) ₹100–120 lakh crore

    Explanation

    CRISIL estimated the corporate bond market would grow from about ₹43 lakh crore (FY2024) to ₹100–120 lakh crore by FY2030.

    • (A) Correct

      Correct: CRISIL projected the market more than doubling to ₹100–120 lakh crore by FY2030.

    • (B) Incorrect

      Wrong: this is near the current size, not the FY2030 projection.

    • (C) Incorrect

      Wrong: higher than CRISIL's projection.

    • (D) Incorrect

      Wrong: lower than CRISIL's projection.

  28. Q28Open question

    Arrange the following mountain peaks/ranges of India from east to west: 1. Garo Hills 2. Nanda Devi 3. Kamet 4. K2

    1. 3 4 2 1
    2. 4 3 1 2
    3. 2 1 4 3
    4. 1 2 3 4
    Show answer & explanation

    Answer: (D) 1 2 3 4

    Explanation

    Garo Hills (Meghalaya), Nanda Devi and Kamet (Uttarakhand, Kamet slightly west), K2 (Karakoram) in the far west.

    • (A) Incorrect

      Wrong: Garo Hills (Meghalaya) are the easternmost.

    • (B) Incorrect

      Wrong: this runs roughly west to east.

    • (C) Incorrect

      Wrong: Garo Hills lie east of Nanda Devi.

    • (D) Correct

      Correct: Garo Hills → Nanda Devi → Kamet → K2 runs east to west.

  29. Q29Open question

    Match List-I with List-II: a. Vaishali b. Bhagalpur c. Jamui d. Madhepura 1. Silk textile 2. Gold 3. Rail (locomotive) factory 4. Floriculture

    1. a-2, b-3, c-4, d-1
    2. a-3, b-4, c-1, d-2
    3. a-4, b-1, c-2, d-3
    4. a-1, b-2, c-3, d-4
    Show answer & explanation

    Answer: (C) a-4, b-1, c-2, d-3

    Explanation

    Bhagalpur is the 'Silk City'; Jamui holds gold reserves; Madhepura has the Alstom electric locomotive factory.

    • (A) Incorrect

      Wrong: Bhagalpur is known for silk, not rail.

    • (B) Incorrect

      Wrong: Jamui is known for gold.

    • (C) Correct

      Correct: Vaishali–floriculture, Bhagalpur–silk, Jamui–gold, Madhepura–electric locomotive factory.

    • (D) Incorrect

      Wrong: most pairs are wrong.

  30. Q30Open question

    After remaining neutral for about 200 years, which country officially joined NATO in March 2024?

    1. Sweden
    2. North Macedonia
    3. Iceland
    4. Finland
    Show answer & explanation

    Answer: (A) Sweden

    Explanation

    Sweden ended its long neutrality after Russia's invasion of Ukraine and joined NATO in March 2024.

    • (A) Correct

      Correct: Sweden became NATO's 32nd member on 7 March 2024.

    • (B) Incorrect

      Wrong: joined in 2020.

    • (C) Incorrect

      Wrong: a founding member (1949).

    • (D) Incorrect

      Wrong: joined in April 2023.

  31. Q31Open question

    Which component of fertiliser is used for stimulating early growth (root development)?

    1. Potassium
    2. Nitrogen
    3. Oxygen
    4. Phosphorus
    Show answer & explanation

    Answer: (D) Phosphorus

    Explanation

    In NPK, phosphorus supports early root growth, nitrogen leaf growth, and potassium overall vigour.

    • (A) Incorrect

      Wrong: potassium mainly aids disease resistance and quality.

    • (B) Incorrect

      Wrong: nitrogen mainly drives leafy (vegetative) growth.

    • (C) Incorrect

      Wrong: not a fertiliser nutrient.

    • (D) Correct

      Correct: phosphorus promotes early root development and establishment.

  32. Q32Open question

    Malik Kafur, also known as 'Hazar Dinari', was bought by whom?

    1. Alauddin Khilji
    2. Ghiyasuddin Tughlaq
    3. Nusrat Khan
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Nusrat Khan

    Explanation

    Alauddin's general Nusrat Khan purchased Kafur at Cambay for 1,000 dinars, hence 'Hazar Dinari'.

    • (A) Incorrect

      Wrong: Kafur was presented to Alauddin after being bought by Nusrat Khan.

    • (B) Incorrect

      Wrong: much later; unrelated.

    • (C) Correct

      Correct: Nusrat Khan bought him for 1,000 dinars during the Gujarat campaign (1299).

    • (D) Incorrect

      Wrong: only Nusrat Khan bought him.

  33. Q33Open question

    In which year was the Bihar State Hydroelectric Power Corporation established?

    1. 1992
    2. 1982
    3. 1998
    4. 1990
    Show answer & explanation

    Answer: (B) 1982

    Explanation

    Bihar State Hydroelectric Power Corporation was incorporated in 1982 to develop hydro projects in the state.

    • (A) Incorrect

      Wrong: not the founding year.

    • (B) Correct

      Correct: BSHPC was set up in 1982.

    • (C) Incorrect

      Wrong: not the founding year.

    • (D) Incorrect

      Wrong: not the founding year.

  34. Q34Open question

    Who wrote 'New Lamps for Old'?

    1. Surendranath Banerjee
    2. Aurobindo Ghosh
    3. Motilal Ghosh
    4. More than one of the above
    Show answer & explanation

    Answer: (B) Aurobindo Ghosh

    Explanation

    'New Lamps for Old' was Aurobindo Ghosh's series attacking the Moderates' mendicant politics.

    • (A) Incorrect

      Wrong: he was a Moderate leader, not the author.

    • (B) Correct

      Correct: Aurobindo's 1893–94 articles in Indu Prakash criticised the Moderates.

    • (C) Incorrect

      Wrong: editor of Amrita Bazar Patrika, not the author.

    • (D) Incorrect

      Wrong: only Aurobindo wrote it.

  35. Q35Open question

    What was the theme of International Olympic Day 2024, celebrated on 23 June?

    1. Together, For a Peaceful World
    2. Let's Move
    3. Move, learn, discover – Together for a better world
    4. Let's Move and Celebrate
    Show answer & explanation

    Answer: (D) Let's Move and Celebrate

    Explanation

    Olympic Day 2024 used the theme 'Let's Move and Celebrate' ahead of Paris 2024.

    • (A) Incorrect

      Wrong: not the 2024 theme.

    • (B) Incorrect

      Wrong: the campaign name, but the 2024 theme was 'Let's Move and Celebrate'.

    • (C) Incorrect

      Wrong: not the 2024 theme.

    • (D) Correct

      Correct: the IOC's 2024 Olympic Day theme, tied to the Paris Games.

  36. Q36Open question

    Who was the President of the Indian National Congress at the Patna (Bankipur) Session in 1912?

    1. Saiyid Mohammad Bahadur
    2. Sir S.P. Sinha
    3. Syed Hasan Imam
    4. R.N. Mudholkar
    Show answer & explanation

    Answer: (D) R.N. Mudholkar

    Explanation

    The 27th Congress session (1912) was held at Bankipur, Patna, presided over by Raghunath Narasinha Mudholkar.

    • (A) Incorrect

      Wrong: he presided in 1913 (Karachi).

    • (B) Incorrect

      Wrong: he presided in 1915 (Bombay).

    • (C) Incorrect

      Wrong: he presided in 1918 (special session, Bombay).

    • (D) Correct

      Correct: R.N. Mudholkar presided over the 1912 Bankipur session.

  37. Q37Open question

    What is the 14th term of the sequence 14, 10, 6, 2, ...?

    1. −42
    2. −34
    3. −46
    4. −38
    Show answer & explanation

    Answer: (D) −38

    Explanation

    AP with a = 14, d = −4: a₁₄ = 14 + 13 × (−4) = −38.

    • (A) Incorrect

      Wrong: that would be the 15th term.

    • (B) Incorrect

      Wrong: that is the 13th term.

    • (C) Incorrect

      Wrong: that is the 16th term.

    • (D) Correct

      Correct: a₁₄ = 14 + 13(−4) = −38.

  38. Q38Open question

    Shares of Agriculture, Industry and Services in overall GVA at current prices (FY 2024):

    1. 17.7%, 27.6%, 54.7%
    2. 18.7%, 28.6%, 52.7%
    3. 17.7%, 28.6%, 53.7%
    4. 16.7%, 26.6%, 56.7%
    Show answer & explanation

    Answer: (A) 17.7%, 27.6%, 54.7%

    Explanation

    FY24 GVA (current prices): agriculture ~17.7%, industry ~27.6%, services ~54.7%.

    • (A) Correct

      Correct: these match the Economic Survey 2023-24 provisional figures.

    • (B) Incorrect

      Wrong: agriculture and industry are overstated.

    • (C) Incorrect

      Wrong: industry and services are off.

    • (D) Incorrect

      Wrong: services are overstated.

  39. Q39Open question

    In which city of Bihar is the recently inaugurated National Dolphin Research Centre located?

    1. Darbhanga
    2. Patna
    3. Munger
    4. Gaya
    Show answer & explanation

    Answer: (B) Patna

    Explanation

    Asia's first National Dolphin Research Centre, for the Gangetic dolphin, is in Patna.

    • (A) Incorrect

      Wrong: not the location.

    • (B) Correct

      Correct: the NDRC was inaugurated in Patna (March 2024) on the Patna University campus by the Ganga.

    • (C) Incorrect

      Wrong: not the location.

    • (D) Incorrect

      Wrong: not the location.

  40. Q40Open question

    Which of the following are the constituents of a soda-acid fire extinguisher?

    1. Conc. sulphuric acid and aluminium sulphate
    2. Dil. sulphuric acid and sodium carbonate
    3. Dil. sulphuric acid and sodium bicarbonate solution
    4. Conc. sulphuric acid and sodium carbonate solution
    Show answer & explanation

    Answer: (C) Dil. sulphuric acid and sodium bicarbonate solution

    Explanation

    In a soda-acid extinguisher, H₂SO₄ reacts with NaHCO₃ solution to produce CO₂ under pressure.

    • (A) Incorrect

      Wrong: aluminium sulphate is used in foam extinguishers.

    • (B) Incorrect

      Wrong: sodium bicarbonate, not carbonate, is used.

    • (C) Correct

      Correct: they react to release CO₂ that smothers the fire.

    • (D) Incorrect

      Wrong: wrong base and acid strength.

  41. Q41Open question

    Which of the following bacterial diseases is called splenic fever?

    1. Typhoid
    2. Anthrax
    3. Cholera
    4. None of the above
    Show answer & explanation

    Answer: (B) Anthrax

    Explanation

    Anthrax causes an enlarged spleen in animals, hence 'splenic fever'.

    • (A) Incorrect

      Wrong: typhoid is enteric fever.

    • (B) Correct

      Correct: anthrax (Bacillus anthracis) is also called splenic fever.

    • (C) Incorrect

      Wrong: cholera is an intestinal infection.

    • (D) Incorrect

      Wrong: anthrax is correct.

  42. Q42Open question

    Where was the Japan–India Maritime Exercise (JIMEX-24) held in 2024?

    1. Yokosuka, Japan
    2. Bay of Bengal
    3. Western Pacific Ocean
    4. Visakhapatnam, India
    Show answer & explanation

    Answer: (A) Yokosuka, Japan

    Explanation

    INS Shivalik took part in JIMEX-24 with the JMSDF at Yokosuka, Japan.

    • (A) Correct

      Correct: JIMEX-24 was held at Yokosuka in June 2024.

    • (B) Incorrect

      Wrong: earlier editions were held there, not 2024.

    • (C) Incorrect

      Wrong: not the 2024 venue.

    • (D) Incorrect

      Wrong: JIMEX-23 was at Visakhapatnam.

  43. Q43Open question

    The Ramakrishna Mission was founded by:

    1. Vidyasagar in 1899
    2. Swami Vivekananda in 1899
    3. Swami Vivekananda in 1897
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Swami Vivekananda in 1897

    Explanation

    Swami Vivekananda founded the Ramakrishna Mission in 1897 at Calcutta.

    • (A) Incorrect

      Wrong: Vidyasagar was not its founder.

    • (B) Incorrect

      Wrong: 1899 is when Belur Math was established; the Mission dates from 1897.

    • (C) Correct

      Correct: Vivekananda founded the Ramakrishna Mission on 1 May 1897.

    • (D) Incorrect

      Wrong: only option C is correct.

  44. Q44Open question

    In a certain code language, COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code?

    1. MFEDJOFM
    2. MFBDPDQF
    3. EOJDJEFM
    4. EOJDEJEM
    Show answer & explanation

    Answer: (C) EOJDJEFM

    Explanation

    COMPUTER reversed is RETUPMOC; first and last letters stay, the middle six shift +1 → RFUVQNPC. Same for MEDICINE → EOJDJEFM.

    • (A) Incorrect

      Wrong: the word must be reversed first.

    • (B) Incorrect

      Wrong: does not follow the rule.

    • (C) Correct

      Correct: reverse to ENICIDEM; keep first and last, shift middle letters +1: E-OJDJEF-M.

    • (D) Incorrect

      Wrong: middle letters are not all shifted correctly.

  45. Q45Open question

    Which of the following radiations is used to get relief from body aches?

    1. Infra-red radiation
    2. UV radiation
    3. Visible radiation
    4. None of these
    Show answer & explanation

    Answer: (A) Infra-red radiation

    Explanation

    Infra-red lamps provide heat therapy for muscle and joint pain.

    • (A) Correct

      Correct: IR heats tissues, easing muscle pain (heat therapy).

    • (B) Incorrect

      Wrong: UV can damage skin; not used for aches.

    • (C) Incorrect

      Wrong: not used for this therapy.

    • (D) Incorrect

      Wrong: infra-red is used.

  46. Q46Open question

    Which of the following was the capital of the Chera dynasty?

    1. Vanji/Karur (Kuravur)
    2. Kanchipuram
    3. Madurai
    4. More than one of the above
    Show answer & explanation

    Answer: (A) Vanji/Karur (Kuravur)

    Explanation

    Sangam-age capitals: Cheras – Vanji (Karur), Cholas – Uraiyur/Puhar, Pandyas – Madurai.

    • (A) Correct

      Correct: the Cheras ruled from Vanji, identified with Karur.

    • (B) Incorrect

      Wrong: capital of the Pallavas.

    • (C) Incorrect

      Wrong: capital of the Pandyas.

    • (D) Incorrect

      Wrong: only option A is correct.

  47. Q47Open question

    The book critical of British policies, 'Gharib Hindustan', was banned in Bihar by the British in 1930. It was written by:

    1. Ali Mohd. Shad
    2. Mohd. Wali Hassan
    3. Badrul Hassan
    4. Shaikh Mian Jaan
    Show answer & explanation

    Answer: (B) Mohd. Wali Hassan

    Explanation

    Gharib Hindustan by Mohd. Wali Hassan was among the nationalist works proscribed in Bihar in 1930.

    • (A) Incorrect

      Wrong: not the author.

    • (B) Correct

      Correct: Mohd. Wali Hassan wrote Gharib Hindustan.

    • (C) Incorrect

      Wrong: not the author.

    • (D) Incorrect

      Wrong: not the author.

  48. Q48Open question

    What is the contribution of agriculture to the Gross Domestic Product (GDP) of Bihar?

    1. 19%
    2. 17%
    3. 33%
    4. 26%
    Show answer & explanation

    Answer: (A) 19%

    Explanation

    Recent Bihar Economic Surveys put agriculture and allied sectors at roughly 19% of GSVA. BPSC dropped this question from the final key because it named no year.

    • (A) Correct

      Correct: agriculture and allied activities form about 19% of Bihar's GSVA.

    • (B) Incorrect

      Wrong: slightly lower than the estimate.

    • (C) Incorrect

      Wrong: too high for recent years.

    • (D) Incorrect

      Wrong: an older figure; recent estimates are near 19%.

  49. Q49Open question

    By how much did the Female Labour Force Participation Rate increase from 2017-18 to 2022-23, according to the NSSO (PLFS)?

    1. From 25.3% to 35%
    2. From 23.3% to 37%
    3. From 23.3% to 33%
    4. From 20.3% to 30%
    Show answer & explanation

    Answer: (B) From 23.3% to 37%

    Explanation

    PLFS shows female LFPR (15+ usual status) rising from 23.3% in 2017-18 to 37.0% in 2022-23.

    • (A) Incorrect

      Wrong: both figures are off.

    • (B) Correct

      Correct: female LFPR rose from 23.3% to 37.0%.

    • (C) Incorrect

      Wrong: the end figure was 37%.

    • (D) Incorrect

      Wrong: both figures are off.

  50. Q50Open question

    Which country took over the chairmanship of BRICS on 1 January 2024?

    1. India
    2. Russia
    3. South Africa
    4. Brazil
    Show answer & explanation

    Answer: (B) Russia

    Explanation

    Russia held the BRICS chair in 2024; the summit took place in Kazan in October 2024.

    • (A) Incorrect

      Wrong: India chaired in 2021.

    • (B) Correct

      Correct: Russia chaired BRICS in 2024 and hosted the Kazan summit.

    • (C) Incorrect

      Wrong: South Africa chaired in 2023.

    • (D) Incorrect

      Wrong: Brazil chairs in 2025.

  51. Q51Open question

    Melamine, used for making floor tiles, is an example of:

    1. Polythene
    2. Thermoplastics
    3. PVC
    4. Thermosetting plastic
    Show answer & explanation

    Answer: (D) Thermosetting plastic

    Explanation

    Melamine and Bakelite are thermosetting plastics; they cannot be remoulded once set.

    • (A) Incorrect

      Wrong: polythene is a thermoplastic.

    • (B) Incorrect

      Wrong: melamine does not soften on reheating.

    • (C) Incorrect

      Wrong: PVC is a thermoplastic.

    • (D) Correct

      Correct: melamine sets permanently on heating and resists heat and fire.

  52. Q52Open question

    How many triangles are there in figure PQRS? (Figure: rectangle PQRS with both diagonals meeting at centre O, plus one horizontal segment from the left side to O and one vertical segment from O down to the bottom side.)

    1. 16
    2. 10
    3. 18
    4. 12
    Show answer & explanation

    Answer: (D) 12

    Explanation

    Diagonals of a rectangle form 8 triangles; two centre-to-side segments each add 2 more, giving 12.

    • (A) Incorrect

      Wrong: overcounts; the extra segments add only 4 triangles.

    • (B) Incorrect

      Wrong: undercounts the triangles made by the extra segments.

    • (C) Incorrect

      Wrong: overcounts.

    • (D) Correct

      Correct: diagonals give 8 triangles (4 small + 4 large); each extra segment splits one small triangle into 2, adding 4: total 12.

  53. Q53Open question

    Which of the following is a cause of rural-to-urban migration in India?

    1. High labour demand in cities
    2. Unbalanced rural-urban development
    3. Few jobs in rural areas
    4. All of the above
    Show answer & explanation

    Answer: (D) All of the above

    Explanation

    Rural push (few jobs, poor services) and urban pull (labour demand, better facilities) combine to cause migration.

    • (A) Incorrect

      Wrong: a pull factor, but not the only cause.

    • (B) Incorrect

      Wrong: a cause, but not the only one.

    • (C) Incorrect

      Wrong: a push factor, but not the only one.

    • (D) Correct

      Correct: push and pull factors together drive migration.

  54. Q54Open question

    According to the RBI, what was the forecast for headline (CPI) inflation in FY 2025?

    1. 5.0%
    2. 4.1%
    3. 5.5%
    4. 4.5%
    Show answer & explanation

    Answer: (D) 4.5%

    Explanation

    In its 2024 policy reviews the RBI projected FY25 CPI inflation at 4.5%.

    • (A) Incorrect

      Wrong: higher than the RBI's projection.

    • (B) Incorrect

      Wrong: lower than the RBI's projection.

    • (C) Incorrect

      Wrong: higher than the RBI's projection.

    • (D) Correct

      Correct: the RBI projected CPI inflation at 4.5% for FY 2024-25.

  55. Q55Open question

    The book 'Hundred Years of Indian National Congress in Bihar' was edited by:

    1. K.K. Datta
    2. P.N. Ojha
    3. A.R. Desai
    4. B.B. Mishra
    Show answer & explanation

    Answer: (B) P.N. Ojha

    Explanation

    P.N. Ojha edited the centenary volume on the Congress in Bihar (1885–1985).

    • (A) Incorrect

      Wrong: K.K. Datta wrote on Bihar's freedom struggle but did not edit this.

    • (B) Correct

      Correct: P.N. Ojha edited the history of the Congress in Bihar (1885–1985).

    • (C) Incorrect

      Wrong: Desai wrote 'Social Background of Indian Nationalism'.

    • (D) Incorrect

      Wrong: not the editor.

  56. Q56Open question

    In which organisms does spore formation occur as a mode of reproduction?

    1. Fungi
    2. Algae
    3. Yeast
    4. Fern
    Show answer & explanation

    Answer: (A) Fungi

    Explanation

    NCERT cites Rhizopus (bread mould), a fungus, as the classic example of spore formation.

    • (A) Correct

      Correct: fungi such as Rhizopus reproduce by spores (the textbook example).

    • (B) Incorrect

      Wrong: algae mainly reproduce by fragmentation; spores are not the standard example.

    • (C) Incorrect

      Wrong: yeast mainly reproduces by budding.

    • (D) Incorrect

      Wrong: ferns do form spores, but the standard answer is fungi.

  57. Q57Open question

    When did the British shift the capital to Delhi?

    1. 1912
    2. 1913
    3. 1911
    4. More than one of the above
    Show answer & explanation

    Answer: (A) 1912

    Explanation

    King George V announced the move at the 1911 Delhi Durbar; the government began functioning from Delhi in 1912 (New Delhi was inaugurated in 1931).

    • (A) Correct

      Correct: the shift was announced in Dec 1911 and took effect in 1912.

    • (B) Incorrect

      Wrong: too late.

    • (C) Incorrect

      Wrong: 1911 was the announcement at the Delhi Durbar; the move took effect in 1912.

    • (D) Incorrect

      Wrong: only one year is asked.

  58. Q58Open question

    The Zoji-la Tunnel will connect which of the following places?

    1. Manali and Jammu
    2. Manali and Lahaul-Spiti
    3. Srinagar and Leh
    4. Srinagar and Jammu
    Show answer & explanation

    Answer: (C) Srinagar and Leh

    Explanation

    Zoji-la tunnel, under the Zoji La pass, links Sonamarg (Kashmir) with Drass (Ladakh) on the Srinagar–Leh highway.

    • (A) Incorrect

      Wrong: not on this route.

    • (B) Incorrect

      Wrong: that is the Atal Tunnel.

    • (C) Correct

      Correct: Zoji-la tunnel gives all-weather Srinagar–Leh connectivity.

    • (D) Incorrect

      Wrong: that route uses the Banihal/Chenani tunnels.

  59. Q59Open question

    Who is the author of the autobiography 'I Have the Streets: A Kutti Cricket Story'?

    1. S. Sreesanth
    2. Suresh Raina
    3. Rahul Dravid
    4. R. Ashwin and Sidharth Monga
    Show answer & explanation

    Answer: (D) R. Ashwin and Sidharth Monga

    Explanation

    R. Ashwin's memoir about his street-cricket roots was co-authored with journalist Sidharth Monga.

    • (A) Incorrect

      Wrong: not his book.

    • (B) Incorrect

      Wrong: Raina wrote 'Believe'.

    • (C) Incorrect

      Wrong: not his book.

    • (D) Correct

      Correct: Ashwin's memoir, co-written with Sidharth Monga (2024).

  60. Q60Open question

    Where was the 13th Ministerial Conference (MC13) of the WTO held in February 2024?

    1. Argentina
    2. Abu Dhabi
    3. Indonesia
    4. Switzerland
    Show answer & explanation

    Answer: (B) Abu Dhabi

    Explanation

    WTO MC13 took place in Abu Dhabi in February–March 2024.

    • (A) Incorrect

      Wrong: MC11 was in Buenos Aires (2017).

    • (B) Correct

      Correct: MC13 was held in Abu Dhabi, UAE (26 Feb–2 Mar 2024).

    • (C) Incorrect

      Wrong: MC9 was in Bali (2013).

    • (D) Incorrect

      Wrong: MC12 was in Geneva (2022).

  61. Q61Open question

    Which one of the following rivers is different from the others?

    1. Tungabhadra
    2. Narmada
    3. Penganga
    4. Mahanadi
    Show answer & explanation

    Answer: (B) Narmada

    Explanation

    The Narmada (with the Tapi) flows westward through a rift valley; the other three belong to east-flowing systems.

    • (A) Incorrect

      Wrong: east-flowing (tributary of the Krishna).

    • (B) Correct

      Correct: the Narmada flows west into the Arabian Sea; the others drain east.

    • (C) Incorrect

      Wrong: east-flowing (Godavari system).

    • (D) Incorrect

      Wrong: east-flowing into the Bay of Bengal.

  62. Q62Open question

    If ÷ means +, − means ÷, × means − and + means ×, then the value of [(36 × 4) − 8 × 4] / [4 + 8 × 2 + 16 ÷ 1] is:

    1. 10
    2. 0
    3. 12
    4. 8
    Show answer & explanation

    Answer: (B) 0

    Explanation

    After substitution the numerator is 4 − 4 = 0 and the denominator 32 − 32 + 1 = 1, giving 0.

    • (A) Incorrect

      Wrong: the numerator works out to 0.

    • (B) Correct

      Correct: numerator: (36 − 4) ÷ 8 − 4 = 0; denominator: 4 × 8 − 2 × 16 + 1 = 1; so 0/1 = 0.

    • (C) Incorrect

      Wrong: the numerator is 0.

    • (D) Incorrect

      Wrong: the numerator is 0.

  63. Q63Open question

    Which of the following is the first artificially prepared element?

    1. Te (Tellurium)
    2. Tc (Technetium)
    3. Th (Thorium)
    4. Tl (Thallium)
    Show answer & explanation

    Answer: (B) Tc (Technetium)

    Explanation

    Technetium (Z = 43) was produced by Perrier and Segrè in 1937; its name means 'artificial'.

    • (A) Incorrect

      Wrong: a naturally occurring element.

    • (B) Correct

      Correct: technetium (1937) was the first element made artificially.

    • (C) Incorrect

      Wrong: a natural radioactive element.

    • (D) Incorrect

      Wrong: a naturally occurring element.

  64. Q64Open question

    What is the full form of CGTMSE?

    1. Credit Guarantee Fund Trust for Macro and Small Enterprises
    2. Credit Guarantee Fund Trust for Medium and Small Enterprises
    3. Credit Guarantee Fund Trust for Micro and Medium Enterprises
    4. Credit Guarantee Fund Trust for Micro and Small Enterprises
    Show answer & explanation

    Answer: (D) Credit Guarantee Fund Trust for Micro and Small Enterprises

    Explanation

    CGTMSE provides collateral-free credit guarantees to micro and small enterprises.

    • (A) Incorrect

      Wrong: it is 'Micro', not 'Macro'.

    • (B) Incorrect

      Wrong: it is 'Micro and Small'.

    • (C) Incorrect

      Wrong: it is 'Micro and Small'.

    • (D) Correct

      Correct: this is the correct expansion (set up by MSME Ministry and SIDBI, 2000).

  65. Q65Open question

    Who gave the slogan 'Do or Die', and when?

    1. Subhas Chandra Bose during the Quit India Movement
    2. Jawaharlal Nehru during the Non-Cooperation Movement
    3. Gandhiji during the Quit India Movement
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Gandhiji during the Quit India Movement

    Explanation

    At the Gowalia Tank session in Bombay (8 August 1942), Gandhi gave the call 'Do or Die'.

    • (A) Incorrect

      Wrong: Bose gave 'Dilli Chalo', not 'Do or Die'.

    • (B) Incorrect

      Wrong: not Nehru's slogan.

    • (C) Correct

      Correct: Gandhi gave 'Do or Die' on 8 August 1942.

    • (D) Incorrect

      Wrong: only option C is correct.

  66. Q66Open question

    Which of the following is the fluid part of the blood?

    1. WBC
    2. Plasma
    3. Blood platelets
    4. RBC
    Show answer & explanation

    Answer: (B) Plasma

    Explanation

    Blood = plasma (fluid matrix) + formed elements (RBCs, WBCs, platelets).

    • (A) Incorrect

      Wrong: WBCs are cells, not the fluid part.

    • (B) Correct

      Correct: plasma is the straw-coloured liquid (~55% of blood).

    • (C) Incorrect

      Wrong: platelets are cell fragments.

    • (D) Incorrect

      Wrong: RBCs are cells.

  67. Q67Open question

    Consider the following about the Ajivika sect: a. Makkhali Gosala was its most important leader. b. The central idea of its philosophy was 'Niyati', i.e. fate. c. It practised discrimination on the basis of caste and class. d. The Ajivikas held regular sabhas (assemblies) for meetings.

    1. b, c and d are correct
    2. a, b and d are correct
    3. a and d are correct
    4. More than one of the above
    Show answer & explanation

    Answer: (B) a, b and d are correct

    Explanation

    The Ajivikas, led by Makkhali Gosala, held strict fatalism (Niyati) and were egalitarian about caste.

    • (A) Incorrect

      Wrong: c is wrong: Ajivikas rejected caste discrimination.

    • (B) Correct

      Correct: Gosala led the sect, Niyati was central, and they held assemblies.

    • (C) Incorrect

      Wrong: b is also correct.

    • (D) Incorrect

      Wrong: only code B matches.

  68. Q68Open question

    Which of the following minerals occurs in the Minas Gerais province of Brazil?

    1. Bauxite
    2. Iron ore
    3. Mica
    4. Coal
    Show answer & explanation

    Answer: (B) Iron ore

    Explanation

    The Iron Quadrangle of Minas Gerais holds some of the world's richest iron-ore deposits.

    • (A) Incorrect

      Wrong: not Minas Gerais's signature mineral.

    • (B) Correct

      Correct: Minas Gerais ('General Mines') is Brazil's chief iron-ore region.

    • (C) Incorrect

      Wrong: not the main mineral.

    • (D) Incorrect

      Wrong: Brazil's coal is in the south.

  69. Q69Open question

    The first Hindi daily newspaper to be published in Bihar was:

    1. Kshatriya Samachar
    2. Udyoga
    3. Sarva Hitaishi
    4. Chaitanya Chandrika
    Show answer & explanation

    Answer: (C) Sarva Hitaishi

    Explanation

    Bihar Bandhu (1872) was Bihar's first Hindi newspaper (weekly); Sarva Hitaishi was the first Hindi daily.

    • (A) Incorrect

      Wrong: not the first Hindi daily.

    • (B) Incorrect

      Wrong: not the first Hindi daily.

    • (C) Correct

      Correct: Sarva Hitaishi is credited as Bihar's first Hindi daily.

    • (D) Incorrect

      Wrong: not the first Hindi daily.

  70. Q70Open question

    Which of the following has a highly elongated elliptical orbit?

    1. Asteroid
    2. Comet
    3. Meteorite
    4. Meteor
    Show answer & explanation

    Answer: (B) Comet

    Explanation

    Comets travel on long, highly elliptical orbits, e.g. Halley's comet (~76 years).

    • (A) Incorrect

      Wrong: most asteroids have fairly circular orbits.

    • (B) Correct

      Correct: comets have highly eccentric, elongated orbits.

    • (C) Incorrect

      Wrong: a meteorite is debris that reaches the ground.

    • (D) Incorrect

      Wrong: a meteor is a streak of light in the atmosphere.

  71. Q71Open question

    If 1 February 1996 is a Wednesday, what day is 3 March 1996?

    1. Friday
    2. Sunday
    3. Saturday
    4. Monday
    Show answer & explanation

    Answer: (C) Saturday

    Explanation

    Feb 1996 has 29 days, so 3 March is 31 days after 1 Feb: 3 odd days → Saturday.

    • (A) Incorrect

      Wrong: count 31 days: 31 mod 7 = 3 → Saturday.

    • (B) Incorrect

      Wrong: this ignores the leap-year February (29 days).

    • (C) Correct

      Correct: 1996 is a leap year; 1 Feb to 3 Mar = 31 days = 4 weeks + 3 days → Wednesday + 3 = Saturday.

    • (D) Incorrect

      Wrong: too far ahead.

  72. Q72Open question

    Where was Donald Trump speaking at an election rally when an alleged shooter, Thomas Matthew Crooks, shot and injured him?

    1. Pennsylvania
    2. Milwaukee
    3. Texas
    4. Arizona
    Show answer & explanation

    Answer: (A) Pennsylvania

    Explanation

    Trump was wounded in the ear at a rally in Butler, Pennsylvania on 13 July 2024.

    • (A) Correct

      Correct: the attack happened at Butler, Pennsylvania on 13 July 2024.

    • (B) Incorrect

      Wrong: Milwaukee hosted the Republican convention days later.

    • (C) Incorrect

      Wrong: not the location.

    • (D) Incorrect

      Wrong: not the location.

  73. Q73Open question

    What was India's position in the manufacturing of mobile phones in 2023?

    1. 10th
    2. 2nd
    3. 15th
    4. 4th
    Show answer & explanation

    Answer: (B) 2nd

    Explanation

    Driven by PLI and Make in India, India became the second-largest mobile phone maker.

    • (A) Incorrect

      Wrong: India ranks much higher.

    • (B) Correct

      Correct: India is the world's second-largest mobile phone manufacturer after China.

    • (C) Incorrect

      Wrong: India ranks much higher.

    • (D) Incorrect

      Wrong: India ranks second.

  74. Q74Open question

    Which of the following cities is located on the river Seine?

    1. Paris
    2. Belgrade
    3. Lisbon
    4. Budapest
    Show answer & explanation

    Answer: (A) Paris

    Explanation

    The Seine flows through Paris to the English Channel.

    • (A) Correct

      Correct: Paris stands on the Seine.

    • (B) Incorrect

      Wrong: on the Danube and Sava.

    • (C) Incorrect

      Wrong: on the Tagus.

    • (D) Incorrect

      Wrong: on the Danube.

  75. Q75Open question

    According to the RBI, what is one of the eligibility criteria for a Small Finance Bank (SFB) to transition into a Universal Bank?

    1. Minimum net worth of ₹1,500 crore
    2. Minimum net worth of ₹500 crore
    3. Minimum net worth of ₹2,000 crore
    4. Minimum net worth of ₹1,000 crore
    Show answer & explanation

    Answer: (D) Minimum net worth of ₹1,000 crore

    Explanation

    Other conditions include listing, a 5-year track record, net profit in the last two years and GNPA ≤ 3%.

    • (A) Incorrect

      Wrong: the RBI set ₹1,000 crore.

    • (B) Incorrect

      Wrong: too low.

    • (C) Incorrect

      Wrong: too high.

    • (D) Correct

      Correct: the April 2024 RBI criteria require net worth of at least ₹1,000 crore.

  76. Q76Open question

    Match List-I (Organisation) with List-II (Headquarters): I. Swadesh Sevak Home II. United India House III. Yugantar Ashram IV. INA (Azad Hind Fauj) a. Vancouver b. Seattle c. San Francisco d. Rangoon

    1. I-d, II-c, III-a, IV-b
    2. I-d, II-c, III-b, IV-a
    3. I-a, II-b, III-c, IV-d
    4. I-a, II-d, III-b, IV-c
    Show answer & explanation

    Answer: (C) I-a, II-b, III-c, IV-d

    Explanation

    Swadesh Sevak Home (G.D. Kumar) – Vancouver; United India House (Taraknath Das) – Seattle; Yugantar Ashram (Ghadar Party) – San Francisco; INA HQ shifted to Rangoon in 1944.

    • (A) Incorrect

      Wrong: Swadesh Sevak Home was in Vancouver.

    • (B) Incorrect

      Wrong: Yugantar Ashram was in San Francisco.

    • (C) Correct

      Correct: Vancouver, Seattle, San Francisco (Ghadar HQ) and Rangoon.

    • (D) Incorrect

      Wrong: most pairs are wrong.

  77. Q77Open question

    When did the Muslim League observe 'Direct Action Day'?

    1. 14 August 1946
    2. 15 August 1947
    3. 16 August 1946
    4. More than one of the above
    Show answer & explanation

    Answer: (C) 16 August 1946

    Explanation

    The League called Direct Action Day on 16 August 1946 to press for Pakistan after rejecting the Cabinet Mission plan.

    • (A) Incorrect

      Wrong: two days early.

    • (B) Incorrect

      Wrong: that is Independence Day.

    • (C) Correct

      Correct: Direct Action Day was 16 August 1946, leading to the Calcutta killings.

    • (D) Incorrect

      Wrong: only one date is correct.

  78. Q78Open question

    In June 2024, which city was named India's first 'UNESCO City of Literature'?

    1. Delhi
    2. Kozhikode
    3. Varanasi
    4. Hyderabad
    Show answer & explanation

    Answer: (B) Kozhikode

    Explanation

    Kozhikode joined UNESCO's Creative Cities Network for literature in 2023 and was formally declared in June 2024.

    • (A) Incorrect

      Wrong: not designated.

    • (B) Correct

      Correct: Kozhikode (Kerala) was formally declared India's first UNESCO City of Literature.

    • (C) Incorrect

      Wrong: Varanasi is a UNESCO City of Music.

    • (D) Incorrect

      Wrong: Hyderabad is a UNESCO City of Gastronomy.

  79. Q79Open question

    What is the structural and functional unit of life?

    1. Cell
    2. Organ
    3. Tissue
    4. Organism
    Show answer & explanation

    Answer: (A) Cell

    Explanation

    Cell theory: all living things are made of cells, the basic unit of life.

    • (A) Correct

      Correct: the cell is the basic structural and functional unit of life.

    • (B) Incorrect

      Wrong: organs are made of tissues.

    • (C) Incorrect

      Wrong: tissues are groups of cells.

    • (D) Incorrect

      Wrong: the whole living being, not the basic unit.

  80. Q80Open question

    Gaurav walks 20 m North, turns left and walks 40 m, turns left again and walks 20 m, then turns right and walks 20 m. How far is he from his starting point?

    1. 40 m
    2. 20 m
    3. 60 m
    4. 30 m
    Show answer & explanation

    Answer: (C) 60 m

    Explanation

    North 20, West 40, South 20, West 20 → net 60 m West of the start.

    • (A) Incorrect

      Wrong: the last 20 m West adds to the 40 m.

    • (B) Incorrect

      Wrong: the westward total is 60 m.

    • (C) Correct

      Correct: N 20 and S 20 cancel; West 40 + 20 = 60 m.

    • (D) Incorrect

      Wrong: does not match the moves.

  81. Q81Open question

    Which one is NOT included in the Budget priorities in pursuit of 'Viksit Bharat' in the Union Budget 2024-25?

    1. Energy Security
    2. Productivity and Resilience in Agriculture
    3. Sustainable Development
    4. Employment and Skilling
    Show answer & explanation

    Answer: (C) Sustainable Development

    Explanation

    The nine priorities: agriculture, employment & skilling, inclusive HRD, manufacturing & services, urban development, energy security, infrastructure, innovation/R&D, next-gen reforms.

    • (A) Incorrect

      Wrong: one of the nine priorities.

    • (B) Incorrect

      Wrong: the first of the nine priorities.

    • (C) Correct

      Correct: not listed among the nine priorities.

    • (D) Incorrect

      Wrong: one of the nine priorities.

  82. Q82Open question

    Which of the following drainage systems drains the land of Bihar?

    1. Ghaghara
    2. Mahanadi
    3. Yamuna
    4. Narmada
    Show answer & explanation

    Answer: (A) Ghaghara

    Explanation

    Bihar is drained by the Ganga and its tributaries, including the Ghaghara, Gandak, Kosi and Son.

    • (A) Correct

      Correct: the Ghaghara (Ganga system) joins the Ganga near Chhapra in Bihar.

    • (B) Incorrect

      Wrong: drains Chhattisgarh and Odisha.

    • (C) Incorrect

      Wrong: joins the Ganga at Prayagraj, before Bihar.

    • (D) Incorrect

      Wrong: drains central India westward.

  83. Q83Open question

    Consider the types of land according to the Amarakosha: a. Urvara – fertile b. Maru – desert c. Shadvala – grassy d. Devamatrika – watered by rain Which of the following is correct?

    1. a and b both
    2. c and d both
    3. b, c and d
    4. More than one of the above
    Show answer & explanation

    Answer: (D) More than one of the above

    Explanation

    Amarakosha classifies land as urvara (fertile), maru (desert), shadvala (grassy), devamatrika (rain-fed), etc.

    • (A) Incorrect

      Wrong: c and d are also correct.

    • (B) Incorrect

      Wrong: a and b are also correct.

    • (C) Incorrect

      Wrong: a is also correct.

    • (D) Correct

      Correct: all four pairs are correct, so more than one option holds.

  84. Q84Open question

    Under Article 243J, which of the following can make provisions for the maintenance of accounts by Panchayats?

    1. Parliament
    2. State Legislature
    3. District Collector
    4. State Finance Commission
    Show answer & explanation

    Answer: (B) State Legislature

    Explanation

    Article 243J lets the state legislature make laws on Panchayat accounts and their audit.

    • (A) Incorrect

      Wrong: 243J vests this in the state legislature.

    • (B) Correct

      Correct: Article 243J: the state legislature may by law provide for accounts and their audit.

    • (C) Incorrect

      Wrong: an executive officer, not a law-maker.

    • (D) Incorrect

      Wrong: the SFC (243-I) reviews finances, not accounts rules.

  85. Q85Open question

    Which of the following is a non-contact force?

    1. Magnetic force
    2. Frictional force
    3. Impact force
    4. None of these
    Show answer & explanation

    Answer: (A) Magnetic force

    Explanation

    Non-contact forces include magnetic, electrostatic and gravitational forces.

    • (A) Correct

      Correct: magnets act at a distance without touching.

    • (B) Incorrect

      Wrong: friction needs surfaces in contact.

    • (C) Incorrect

      Wrong: impact requires contact.

    • (D) Incorrect

      Wrong: magnetic force is non-contact.

  86. Q86Open question

    Motorcycle is related to Battery in the same way as Life is related to:

    1. Moon
    2. Earth
    3. Star
    4. Sun
    Show answer & explanation

    Answer: (D) Sun

    Explanation

    The analogy is 'source of energy': battery → motorcycle, Sun → life.

    • (A) Incorrect

      Wrong: the Moon is not life's energy source.

    • (B) Incorrect

      Wrong: Earth is life's home, not its energy source.

    • (C) Incorrect

      Wrong: too general.

    • (D) Correct

      Correct: as a battery powers a motorcycle, the Sun is the energy source for life.

  87. Q87Open question

    Consider the following about King Pravarasena (I): a. He was the real founder of the Vakataka dynasty. b. His empire extended from Bundelkhand in the north to Hyderabad in the south. c. He succeeded his father, King Vindhyashakti. d. He is mentioned in the Puranas. Which of the statements are correct?

    1. a and b both
    2. a and c both
    3. b, c and d
    4. More than one of the above
    Show answer & explanation

    Answer: (D) More than one of the above

    Explanation

    Pravarasena I, son of Vindhyashakti, expanded the Vakataka realm, took the title Samrat and appears in the Puranas.

    • (A) Incorrect

      Wrong: c and d are also correct.

    • (B) Incorrect

      Wrong: b and d are also correct.

    • (C) Incorrect

      Wrong: a is also correct.

    • (D) Correct

      Correct: all four statements are correct.

  88. Q88Open question

    Match the newspapers with their editors: I. Free Hindustan II. Indian Opinion III. Voice of India IV. Bengalee a. Mahatma Gandhi b. Dadabhai Naoroji c. Surendranath Banerjee d. Taraknath Das

    1. I-c, II-d, III-a, IV-b
    2. I-d, II-a, III-b, IV-c
    3. I-c, II-a, III-d, IV-b
    4. I-d, II-c, III-b, IV-a
    Show answer & explanation

    Answer: (B) I-d, II-a, III-b, IV-c

    Explanation

    Taraknath Das ran Free Hindustan (Vancouver); Gandhi ran Indian Opinion (South Africa); Naoroji, Voice of India; Surendranath Banerjee, The Bengalee.

    • (A) Incorrect

      Wrong: Indian Opinion was Gandhi's paper.

    • (B) Correct

      Correct: Free Hindustan–Taraknath Das, Indian Opinion–Gandhi, Voice of India–Naoroji, Bengalee–Surendranath.

    • (C) Incorrect

      Wrong: Free Hindustan was Taraknath Das's.

    • (D) Incorrect

      Wrong: Bengalee was Surendranath's.

  89. Q89Open question

    In which freestyle weight category did Aman Sehrawat become the first Indian male wrestler to qualify for the 2024 Paris Olympics?

    1. 86 kg
    2. 65 kg
    3. 74 kg
    4. 57 kg
    Show answer & explanation

    Answer: (D) 57 kg

    Explanation

    Aman Sehrawat qualified in men's 57 kg freestyle at Istanbul and won bronze at Paris 2024.

    • (A) Incorrect

      Wrong: not his category.

    • (B) Incorrect

      Wrong: not his category.

    • (C) Incorrect

      Wrong: not his category.

    • (D) Correct

      Correct: Aman qualified (and later won bronze) in 57 kg.

  90. Q90Open question

    Which of the following districts of Bihar has the highest percentage of Scheduled Tribe population as per Census 2011?

    1. Katihar
    2. Jamui
    3. Purnia
    4. Banka
    Show answer & explanation

    Answer: (A) Katihar

    Explanation

    Census 2011: Katihar has Bihar's highest ST share (~5.9%), followed by Banka, Jamui and Purnia.

    • (A) Correct

      Correct: Katihar has about 5.9% ST population, the highest in Bihar.

    • (B) Incorrect

      Wrong: about 4.5%.

    • (C) Incorrect

      Wrong: about 4.4%.

    • (D) Incorrect

      Wrong: about 4.7%.

  91. Q91Open question

    Which sector received the highest allocation in the Bihar Budget 2024-25?

    1. Agriculture
    2. Health
    3. Infrastructure
    4. Education
    Show answer & explanation

    Answer: (D) Education

    Explanation

    Education has consistently received the largest allocation in Bihar's budget.

    • (A) Incorrect

      Wrong: lower than education.

    • (B) Incorrect

      Wrong: lower than education.

    • (C) Incorrect

      Wrong: lower than education.

    • (D) Correct

      Correct: education got the largest share (about ₹52,600 crore).

  92. Q92Open question

    Choose the group of letters which is different from the others.

    1. ORUX
    2. PSVX
    3. CFIL
    4. JMPS
    Show answer & explanation

    Answer: (B) PSVX

    Explanation

    All groups follow +3 except PSVX, whose last step is +2.

    • (A) Incorrect

      Wrong: +3 each step (O→R→U→X).

    • (B) Correct

      Correct: P→S→V is +3, but V→X is +2, breaking the pattern.

    • (C) Incorrect

      Wrong: +3 each step.

    • (D) Incorrect

      Wrong: +3 each step.

  93. Q93Open question

    Corundum and cryolite are important ores of:

    1. Aluminium
    2. Silver
    3. Tin
    4. Iron
    Show answer & explanation

    Answer: (A) Aluminium

    Explanation

    Both are aluminium minerals; cryolite is used as a flux in aluminium extraction.

    • (A) Correct

      Correct: corundum (Al₂O₃) and cryolite (Na₃AlF₆) contain aluminium.

    • (B) Incorrect

      Wrong: silver ores include argentite.

    • (C) Incorrect

      Wrong: tin ore is cassiterite.

    • (D) Incorrect

      Wrong: iron ores are haematite, magnetite etc.

  94. Q94Open question

    After the changes made in March 2024, what is the eligibility age for senior citizens to vote by postal ballot?

    1. 85 years
    2. 80 years
    3. 82 years
    4. 90 years
    Show answer & explanation

    Answer: (A) 85 years

    Explanation

    The Conduct of Election Rules were amended in March 2024 to allow home/postal voting for those aged 85+.

    • (A) Correct

      Correct: the age was raised from 80 to 85 years.

    • (B) Incorrect

      Wrong: this was the earlier limit.

    • (C) Incorrect

      Wrong: not the limit.

    • (D) Incorrect

      Wrong: not the limit.

  95. Q95Open question

    Which of the following states of India has major reserves of coal?

    1. Jharkhand
    2. Chhattisgarh
    3. Odisha
    4. All of the above
    Show answer & explanation

    Answer: (D) All of the above

    Explanation

    Jharkhand, Odisha and Chhattisgarh together hold the bulk of India's coal reserves.

    • (A) Incorrect

      Wrong: true, but the others also have major reserves.

    • (B) Incorrect

      Wrong: true, but the others also have major reserves.

    • (C) Incorrect

      Wrong: true, but the others also have major reserves.

    • (D) Correct

      Correct: Jharkhand, Odisha and Chhattisgarh hold India's largest coal reserves.

  96. Q96Open question

    Which two words were inserted into the Preamble by the 42nd Amendment?

    1. Democratic and Socialist
    2. Republic and Secular
    3. Socialist and Sovereign
    4. Secular and Socialist
    Show answer & explanation

    Answer: (D) Secular and Socialist

    Explanation

    The 42nd Amendment, 1976 added 'Socialist', 'Secular' and 'Integrity' to the Preamble.

    • (A) Incorrect

      Wrong: 'Democratic' was in the original Preamble.

    • (B) Incorrect

      Wrong: 'Republic' was in the original.

    • (C) Incorrect

      Wrong: 'Sovereign' was in the original.

    • (D) Correct

      Correct: the 42nd Amendment (1976) added 'Socialist', 'Secular' (and 'Integrity').

  97. Q97Open question

    In which Lok Sabha seat did the Shompen tribe, one of India's PVTGs, vote for the first time in April 2024?

    1. Tripura East
    2. Vizianagaram, Andhra Pradesh
    3. Tura
    4. Andaman and Nicobar
    Show answer & explanation

    Answer: (D) Andaman and Nicobar

    Explanation

    The Shompen, a PVTG of Great Nicobar Island, voted for the first time in the 2024 general election.

    • (A) Incorrect

      Wrong: the Shompen do not live there.

    • (B) Incorrect

      Wrong: not their home.

    • (C) Incorrect

      Wrong: in Meghalaya; not related.

    • (D) Correct

      Correct: the Shompen of Great Nicobar voted in the Andaman & Nicobar seat.

  98. Q98Open question

    What was Bihar's Per Capita Net State Domestic Product at current prices for 2022-23 (base year 2011-12)?

    1. ₹54,111
    2. ₹42,083
    3. ₹61,434
    4. ₹47,498
    Show answer & explanation

    Answer: (A) ₹54,111

    Explanation

    Per MoSPI/RBI state data, Bihar's per capita NSDP at current prices in 2022-23 was ₹54,111.

    • (A) Correct

      Correct: Bihar's per capita NSDP for 2022-23 was ₹54,111, the lowest among states.

    • (B) Incorrect

      Wrong: an older-year figure.

    • (C) Incorrect

      Wrong: higher than the actual figure.

    • (D) Incorrect

      Wrong: an older-year figure.

  99. Q99Open question

    Which centre in Bihar is proposed to be developed under the Vishnupad corridor scheme for tourism in the Union Budget 2024?

    1. Nalanda
    2. Rajgir
    3. Vaishali
    4. Gaya
    Show answer & explanation

    Answer: (D) Gaya

    Explanation

    Budget 2024-25 announced Kashi Vishwanath-style corridors for the Vishnupad temple (Gaya) and Mahabodhi temple (Bodh Gaya).

    • (A) Incorrect

      Wrong: Nalanda was mentioned separately for tourism.

    • (B) Incorrect

      Wrong: Rajgir got a separate comprehensive initiative.

    • (C) Incorrect

      Wrong: not part of this scheme.

    • (D) Correct

      Correct: the Vishnupad temple corridor is in Gaya.

  100. Q100Open question

    Match the political organisation with its founder: I. Khaksars II. Congress Socialist Party III. Independent Labour Party IV. Forward Bloc a. Subhas Chandra Bose b. Inayatullah Mashriqi c. Jayaprakash Narayan d. B.R. Ambedkar

    1. I-b, II-d, III-a, IV-c
    2. I-b, II-c, III-d, IV-a
    3. I-c, II-d, III-a, IV-b
    4. I-d, II-c, III-b, IV-a
    Show answer & explanation

    Answer: (B) I-b, II-c, III-d, IV-a

    Explanation

    Khaksar movement (1931, Mashriqi); Congress Socialist Party (1934, JP and others); ILP (1936, Ambedkar); Forward Bloc (1939, Bose).

    • (A) Incorrect

      Wrong: Forward Bloc was Bose's.

    • (B) Correct

      Correct: Khaksars–Mashriqi, CSP–JP, ILP–Ambedkar, Forward Bloc–Bose.

    • (C) Incorrect

      Wrong: Khaksars were founded by Mashriqi.

    • (D) Incorrect

      Wrong: ILP was Ambedkar's.

  101. Q101Open question

    Before his appointment as a judge of the Supreme Court of India in July 2024, Justice N. Kotiswar Singh was the Chief Justice of which High Court?

    1. Jammu & Kashmir and Ladakh High Court
    2. Madras High Court
    3. Bombay High Court
    4. Gauhati High Court
    Show answer & explanation

    Answer: (A) Jammu & Kashmir and Ladakh High Court

    Explanation

    Justice N. Kotiswar Singh, the first SC judge from Manipur, was Chief Justice of the J&K and Ladakh High Court.

    • (A) Correct

      Correct: he was Chief Justice of the J&K and Ladakh HC.

    • (B) Incorrect

      Wrong: not his court.

    • (C) Incorrect

      Wrong: not his court.

    • (D) Incorrect

      Wrong: he served there earlier as a judge, not as Chief Justice.

  102. Q102Open question

    The Sikh pilgrimage site 'Takht Sri Harimandir Ji Patna Sahib', considered the second holiest Takht, is located at:

    1. Bhagalpur
    2. Gaya
    3. Patna
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Patna

    Explanation

    Takht Sri Patna Sahib marks the birthplace of Guru Gobind Singh in Patna.

    • (A) Incorrect

      Wrong: not the location.

    • (B) Incorrect

      Wrong: not the location.

    • (C) Correct

      Correct: Patna Sahib, birthplace of Guru Gobind Singh, is in Patna.

    • (D) Incorrect

      Wrong: it is only in Patna.

  103. Q103Open question

    The Bihula festival is celebrated especially in which district of Bihar, usually in August?

    1. Bhagalpur
    2. Patna
    3. Sitamarhi
    4. Darbhanga
    Show answer & explanation

    Answer: (A) Bhagalpur

    Explanation

    The Bihula–Bishahari (snake goddess) festival and Manjusha art are rooted in the Bhagalpur region.

    • (A) Correct

      Correct: Bihula–Bishahari is celebrated mainly in Bhagalpur (Champa region).

    • (B) Incorrect

      Wrong: not its main centre.

    • (C) Incorrect

      Wrong: not its main centre.

    • (D) Incorrect

      Wrong: not its main centre.

  104. Q104Open question

    Which of the following gives the resistance of a wire?

    1. R = IV
    2. R = I/2V
    3. R = V/I
    4. R = I/V
    Show answer & explanation

    Answer: (C) R = V/I

    Explanation

    By Ohm's law V = IR, so R = V/I.

    • (A) Incorrect

      Wrong: IV is power, not resistance.

    • (B) Incorrect

      Wrong: not a valid relation.

    • (C) Correct

      Correct: Ohm's law: R = V/I.

    • (D) Incorrect

      Wrong: I/V is conductance.

  105. Q105Open question

    Which Article of the Constitution disqualifies a Member of Parliament for holding an office of profit?

    1. Article 102(1)(c)
    2. Article 102(1)(b)
    3. Article 102(1)(d)
    4. Article 102(1)(a)
    Show answer & explanation

    Answer: (D) Article 102(1)(a)

    Explanation

    Article 102(1)(a) covers office of profit under the Union or a State government (unless exempted by Parliament).

    • (A) Incorrect

      Wrong: this concerns undischarged insolvents.

    • (B) Incorrect

      Wrong: this concerns unsound mind.

    • (C) Incorrect

      Wrong: this concerns citizenship.

    • (D) Correct

      Correct: 102(1)(a) disqualifies anyone holding an office of profit under the government.

  106. Q106Open question

    Which great ruler founded the Haryanka dynasty in ancient Bihar?

    1. Bimbisara
    2. Brihadratha
    3. Ajatashatru
    4. More than one of the above
    Show answer & explanation

    Answer: (A) Bimbisara

    Explanation

    Bimbisara (c. 544 BCE) founded the Haryanka dynasty of Magadha with Rajagriha as capital.

    • (A) Correct

      Correct: Bimbisara is regarded as the founder of the Haryanka dynasty.

    • (B) Incorrect

      Wrong: he founded the earlier Brihadratha dynasty.

    • (C) Incorrect

      Wrong: Bimbisara's son and successor.

    • (D) Incorrect

      Wrong: only Bimbisara is correct.

  107. Q107Open question

    Which statement about Ruchira Kamboj, the first woman to become India's Permanent Representative to the UN (now retired), is true?

    1. She was a member of NITI Aayog
    2. She was a member of the Indian Council of World Affairs
    3. She held the position of Permanent Representative of India to UNESCO, Paris
    4. She was the first woman Indian Ambassador to the USA
    Show answer & explanation

    Answer: (C) She held the position of Permanent Representative of India to UNESCO, Paris

    Explanation

    Ruchira Kamboj (IFS 1987) served at UNESCO Paris, as Ambassador to Bhutan and High Commissioner to South Africa before the UN.

    • (A) Incorrect

      Wrong: she was not.

    • (B) Incorrect

      Wrong: not her notable post.

    • (C) Correct

      Correct: she served as India's Permanent Delegate to UNESCO in Paris.

    • (D) Incorrect

      Wrong: that was Meera Shankar (2009).

  108. Q108Open question

    Which of the following are exothermic processes? i. Evaporation of water ii. Dilution of an acid (H₂SO₄) iii. Reaction of water with quicklime iv. Sublimation of camphor

    1. iii and iv
    2. ii and iii
    3. i and iv
    4. i and ii
    Show answer & explanation

    Answer: (B) ii and iii

    Explanation

    Evaporation and sublimation absorb heat; diluting H₂SO₄ and CaO + H₂O release heat.

    • (A) Incorrect

      Wrong: sublimation absorbs heat.

    • (B) Correct

      Correct: diluting acid and slaking lime both release heat.

    • (C) Incorrect

      Wrong: both are endothermic.

    • (D) Incorrect

      Wrong: evaporation is endothermic.

  109. Q109Open question

    What is the object of a 'cut motion' in Parliament?

    1. To move a proposal to reduce expenditure in the budget proposals
    2. To restrict day-to-day financial expenditure of the government
    3. To restrict grants from the Consolidated Fund of India
    4. To restrict the grants of the Government
    Show answer & explanation

    Answer: (A) To move a proposal to reduce expenditure in the budget proposals

    Explanation

    Cut motions (policy cut, economy cut, token cut) seek to reduce demands for grants in the budget.

    • (A) Correct

      Correct: a cut motion seeks to reduce the amount of a demand for grant.

    • (B) Incorrect

      Wrong: too general.

    • (C) Incorrect

      Wrong: charged expenditure is not voted on.

    • (D) Incorrect

      Wrong: vague; the specific aim is reducing a demand.

  110. Q110Open question

    Who presented the Bihar Budget 2024-25 in the State Assembly?

    1. Vijay Kumar Sinha
    2. Nitish Kumar
    3. Vijay Kumar Choudhary
    4. Samrat Choudhary
    Show answer & explanation

    Answer: (D) Samrat Choudhary

    Explanation

    Samrat Choudhary presented a ₹2.79 lakh crore budget for 2024-25 in February 2024.

    • (A) Incorrect

      Wrong: Deputy CM, but not the Finance Minister.

    • (B) Incorrect

      Wrong: the Chief Minister does not present it.

    • (C) Incorrect

      Wrong: he was the earlier Finance Minister.

    • (D) Correct

      Correct: Deputy CM and Finance Minister Samrat Choudhary presented it.

  111. Q111Open question

    When did the new province of Bihar come into force during British rule?

    1. April 1912
    2. April 1911
    3. March 1912
    4. More than one of the above
    Show answer & explanation

    Answer: (A) April 1912

    Explanation

    1 April 1912 is celebrated as Bihar Diwas, when the province was carved out of the Bengal Presidency.

    • (A) Correct

      Correct: Bihar and Orissa province came into being on 1 April 1912.

    • (B) Incorrect

      Wrong: the separation was announced in December 1911.

    • (C) Incorrect

      Wrong: notified in March; effective in April.

    • (D) Incorrect

      Wrong: only April 1912 is correct.

  112. Q112Open question

    Who headed the Royal Commission on Indian Currency appointed in 1913?

    1. James Wilson
    2. J.M. Keynes
    3. Sir Austen Chamberlain
    4. Sir W.R. Mansfield
    Show answer & explanation

    Answer: (C) Sir Austen Chamberlain

    Explanation

    The Chamberlain Commission (1913–14), with Keynes as member, examined India's currency and finance.

    • (A) Incorrect

      Wrong: he introduced the income tax (1860).

    • (B) Incorrect

      Wrong: Keynes was a member, not the chairman.

    • (C) Correct

      Correct: Austen Chamberlain chaired the 1913 Royal Commission on Indian Finance and Currency.

    • (D) Incorrect

      Wrong: not the chairman.

  113. Q113Open question

    Which of the following is the value of the solar constant?

    1. 1.6 kW/m²
    2. 1.4 kW/m²
    3. 1.2 kW/m²
    4. 1.8 kW/m²
    Show answer & explanation

    Answer: (B) 1.4 kW/m²

    Explanation

    The solar constant (solar flux at Earth's mean distance) is about 1361 W/m² ≈ 1.4 kW/m².

    • (A) Incorrect

      Wrong: too high.

    • (B) Correct

      Correct: the solar constant is about 1.36 kW/m² (~1.4).

    • (C) Incorrect

      Wrong: too low.

    • (D) Incorrect

      Wrong: too high.

  114. Q114Open question

    Which of the following was NOT one of the features of the Government of India Act, 1935?

    1. Reconstruction of the Governor-General's Executive Council
    2. Provincial Autonomy
    3. Appraisal of the Act of 1935
    4. Proposal for a Federation of India
    Show answer & explanation

    Answer: (C) Appraisal of the Act of 1935

    Explanation

    The 1935 Act's features included provincial autonomy, a proposed federation, dyarchy at the Centre and a Federal Court.

    • (A) Incorrect

      Wrong: the Act restructured the central executive (dyarchy at the Centre).

    • (B) Incorrect

      Wrong: a core feature of the Act.

    • (C) Correct

      Correct: an appraisal of the Act is not a feature of the Act itself.

    • (D) Incorrect

      Wrong: the Act proposed an All-India Federation.

  115. Q115Open question

    What is the present position of representation of the Anglo-Indian community in the Lok Sabha?

    1. Their nomination has been done away with by the 104th Constitutional Amendment
    2. Two Anglo-Indians are nominated by the President
    3. They are nominated as per their population
    4. One Anglo-Indian is nominated by the President
    Show answer & explanation

    Answer: (A) Their nomination has been done away with by the 104th Constitutional Amendment

    Explanation

    Article 331 nominations lapsed on 25 January 2020 under the 104th Amendment.

    • (A) Correct

      Correct: the 104th Amendment (2019) ended the provision from January 2020.

    • (B) Incorrect

      Wrong: this was the old position (Art. 331).

    • (C) Incorrect

      Wrong: never the rule.

    • (D) Incorrect

      Wrong: incorrect number and outdated.

  116. Q116Open question

    Which community, categorised as Scheduled Caste by a 2015 Bihar government notification, had that notification quashed by the Supreme Court in July 2024 (states cannot alter the Article 341 list)?

    1. Lal Begi
    2. Tanti-Tantwa
    3. Pano
    4. Dabgar
    Show answer & explanation

    Answer: (B) Tanti-Tantwa

    Explanation

    The Supreme Court held that only Parliament can modify the presidential SC list under Article 341.

    • (A) Incorrect

      Wrong: not the community in the case.

    • (B) Correct

      Correct: Bihar had merged Tanti-Tantwa (an EBC) with the SC 'Pan/Sawasi' group; the SC quashed it.

    • (C) Incorrect

      Wrong: Pan is the existing SC entry, not the added community.

    • (D) Incorrect

      Wrong: not the community in the case.

  117. Q117Open question

    Who won the men's singles title at the French Open 2024?

    1. Novak Djokovic
    2. Alexander Zverev
    3. Daniil Medvedev
    4. Carlos Alcaraz
    Show answer & explanation

    Answer: (D) Carlos Alcaraz

    Explanation

    Carlos Alcaraz won his first French Open in 2024, beating Alexander Zverev in five sets.

    • (A) Incorrect

      Wrong: he withdrew injured in the quarter-final stage.

    • (B) Incorrect

      Wrong: he lost the final.

    • (C) Incorrect

      Wrong: not the champion.

    • (D) Correct

      Correct: Alcaraz beat Zverev in the 2024 final.

  118. Q118Open question

    Who became the first Indian mountaineer to scale Mount Everest and Mount Lhotse twice in one season?

    1. Satyadeep Gupta
    2. Sunil Rohilla
    3. Premlata Agarwal
    4. Kaamya Karthikeyan
    Show answer & explanation

    Answer: (A) Satyadeep Gupta

    Explanation

    Satyadeep Gupta summited Everest and Lhotse twice each in the 2024 spring season.

    • (A) Correct

      Correct: he achieved the double Everest–Lhotse traverse twice in May 2024.

    • (B) Incorrect

      Wrong: not this record.

    • (C) Incorrect

      Wrong: known for the Seven Summits, not this record.

    • (D) Incorrect

      Wrong: youngest Indian girl to climb Everest from Nepal (2024).

  119. Q119Open question

    What is the sex ratio of Bihar as per Census 2011?

    1. 918
    2. 916
    3. 933
    4. 922
    Show answer & explanation

    Answer: (A) 918

    Explanation

    Census 2011: Bihar 918, India 943.

    • (A) Correct

      Correct: Bihar's sex ratio was 918 females per 1000 males.

    • (B) Incorrect

      Wrong: close but incorrect.

    • (C) Incorrect

      Wrong: India's 2001 figure.

    • (D) Incorrect

      Wrong: not Bihar's figure.

  120. Q120Open question

    Chlorophyll in photosynthesis is used for:

    1. Reduction of CO₂
    2. Breaking down water molecules
    3. No function
    4. Absorbing light
    Show answer & explanation

    Answer: (D) Absorbing light

    Explanation

    Chlorophyll captures light energy that drives the light reactions of photosynthesis.

    • (A) Incorrect

      Wrong: done in the Calvin cycle using ATP/NADPH, not by chlorophyll directly.

    • (B) Incorrect

      Wrong: water splitting is done by the oxygen-evolving complex.

    • (C) Incorrect

      Wrong: chlorophyll is essential.

    • (D) Correct

      Correct: chlorophyll absorbs light energy (mainly red and blue).

  121. Q121Open question

    The political strategy 'Struggle–Truce–Struggle' (S-T-S) came into prominence with the call for:

    1. Swadeshi Movement
    2. Quit India
    3. Boycott of the Simon Commission
    4. Khilafat issue
    Show answer & explanation

    Answer: (D) Khilafat issue

    Explanation

    Bipan Chandra's S-T-S describes alternating mass struggle and truce from Non-Cooperation (1920) onward. BPSC dropped this question from the final key; D is the best-supported answer.

    • (A) Incorrect

      Wrong: the Swadeshi Movement (1905) predates the Gandhian strategy.

    • (B) Incorrect

      Wrong: Quit India was the final phase, not where S-T-S began.

    • (C) Incorrect

      Wrong: not the starting point of the strategy.

    • (D) Correct

      Correct: the Khilafat call launched Non-Cooperation, the first Gandhian mass struggle in the S-T-S pattern.

  122. Q122Open question

    During the Quit India Movement, parallel 'national governments' were set up at many places. Which of the following is NOT correctly matched?

    1. Raiyati Sarkar – Kheda (Gujarat)
    2. Prati Sarkar – Satara (Maharashtra)
    3. Praja Mandal – Talcher (Orissa)
    4. Jatiya Sarkar – Tamluk (Bengal)
    Show answer & explanation

    Answer: (A) Raiyati Sarkar – Kheda (Gujarat)

    Explanation

    Parallel governments of 1942: Ballia (Chittu Pandey), Tamluk (Jatiya Sarkar), Satara (Prati Sarkar), Talcher; Kheda had none.

    • (A) Correct

      Correct: no such parallel government is recorded at Kheda in 1942.

    • (B) Incorrect

      Wrong: correctly matched (Nana Patil).

    • (C) Incorrect

      Wrong: correctly matched.

    • (D) Incorrect

      Wrong: correctly matched (Tamralipta Jatiya Sarkar).

  123. Q123Open question

    Which of the following is equivalent to one tesla?

    1. Ampere per newton
    2. Newton per coulomb
    3. Newton per ampere-second
    4. Newton per ampere-metre
    Show answer & explanation

    Answer: (D) Newton per ampere-metre

    Explanation

    Using F = BIL, the tesla equals one newton per ampere-metre.

    • (A) Incorrect

      Wrong: dimensionally wrong.

    • (B) Incorrect

      Wrong: that is the unit of electric field.

    • (C) Incorrect

      Wrong: A·s is a coulomb; missing velocity term.

    • (D) Correct

      Correct: from F = BIL, B = F/(IL), so T = N/(A·m).

  124. Q124Open question

    Which dynasty ruled Magadha after the Shishunaga dynasty?

    1. Maurya dynasty
    2. Shunga dynasty
    3. Nanda dynasty
    4. More than one of the above
    Show answer & explanation

    Answer: (C) Nanda dynasty

    Explanation

    Magadha's sequence: Haryanka → Shishunaga → Nanda → Maurya → Shunga → Kanva.

    • (A) Incorrect

      Wrong: the Mauryas followed the Nandas.

    • (B) Incorrect

      Wrong: the Shungas followed the Mauryas.

    • (C) Correct

      Correct: Mahapadma Nanda overthrew the Shishunagas.

    • (D) Incorrect

      Wrong: only the Nandas directly followed.

  125. Q125Open question

    Who among the following was Speaker of the Lok Sabha before being elected President of India?

    1. Giani Zail Singh
    2. V.V. Giri
    3. Neelam Sanjiva Reddy
    4. A.P.J. Abdul Kalam
    Show answer & explanation

    Answer: (C) Neelam Sanjiva Reddy

    Explanation

    N. Sanjiva Reddy is the only Lok Sabha Speaker to have become President.

    • (A) Incorrect

      Wrong: he was Home Minister, not Speaker.

    • (B) Incorrect

      Wrong: he was Vice-President, not Speaker.

    • (C) Correct

      Correct: he was Lok Sabha Speaker (1967–69, 1977) before becoming President in 1977.

    • (D) Incorrect

      Wrong: a scientist, never Speaker.

  126. Q126Open question

    When did Bihar introduce a Green Budget for the first time?

    1. FY 2020-21
    2. FY 2018-19
    3. FY 2021-22
    4. FY 2019-20
    Show answer & explanation

    Answer: (A) FY 2020-21

    Explanation

    Bihar's first Green Budget, tagging climate-related spending, came with the 2020-21 budget.

    • (A) Correct

      Correct: Bihar presented its first Green Budget for 2020-21.

    • (B) Incorrect

      Wrong: too early.

    • (C) Incorrect

      Wrong: it began a year earlier.

    • (D) Incorrect

      Wrong: too early.

  127. Q127Open question

    Manvi Madhu Kashyap recently became Bihar's first transgender:

    1. Havildar in the Bihar Regiment
    2. Bus driver in state transport
    3. Traffic Police Inspector
    4. Sub-Inspector of Police
    Show answer & explanation

    Answer: (D) Sub-Inspector of Police

    Explanation

    Manvi Madhu Kashyap was among three transgender candidates selected as police sub-inspectors in Bihar in 2024.

    • (A) Incorrect

      Wrong: not her post.

    • (B) Incorrect

      Wrong: not her post.

    • (C) Incorrect

      Wrong: not her post.

    • (D) Correct

      Correct: she cleared the BPSSC exam to become Bihar's first transgender SI (2024).

  128. Q128Open question

    Which of the following is a zaid crop?

    1. Gram
    2. Fodder
    3. Mustard
    4. Cotton
    Show answer & explanation

    Answer: (B) Fodder

    Explanation

    Zaid crops (March–June) include watermelon, muskmelon, cucumber, vegetables and fodder.

    • (A) Incorrect

      Wrong: a rabi crop.

    • (B) Correct

      Correct: fodder crops are grown in the short summer (zaid) season.

    • (C) Incorrect

      Wrong: a rabi crop.

    • (D) Incorrect

      Wrong: a kharif crop.

  129. Q129Open question

    Shreyasi Singh, MLA, who represented India in shooting at the Paris Olympics 2024, was elected from which constituency in Bihar?

    1. Sugauli
    2. Gidhaur
    3. Jamui
    4. Kesaria
    Show answer & explanation

    Answer: (C) Jamui

    Explanation

    Shreyasi Singh, a Commonwealth Games gold medallist in trap, is the MLA from Jamui.

    • (A) Incorrect

      Wrong: not her seat.

    • (B) Incorrect

      Wrong: not her seat (her family is from the Gidhaur estate).

    • (C) Correct

      Correct: Shreyasi Singh won the Jamui seat in 2020.

    • (D) Incorrect

      Wrong: not her seat.

  130. Q130Open question

    What was the chief economic foundation of the triangular trade between India, China and England?

    1. Silk
    2. Opium
    3. Black pepper
    4. More than one of the above
    Show answer & explanation

    Answer: (B) Opium

    Explanation

    British India's opium exports to China financed tea purchases for Britain, creating the triangular trade.

    • (A) Incorrect

      Wrong: silk was a Chinese export, not the base.

    • (B) Correct

      Correct: Indian opium sold in China paid for tea exported to England.

    • (C) Incorrect

      Wrong: not central to this trade.

    • (D) Incorrect

      Wrong: opium was the foundation.

  131. Q131Open question

    Which of the following is the full form of PCRA?

    1. Partial Counting of Remaining Amendment
    2. Public Conservation Research Association
    3. Petroleum Conservation Research Association
    4. Public Council of Research Association
    Show answer & explanation

    Answer: (C) Petroleum Conservation Research Association

    Explanation

    PCRA (now Petroleum Conservation Research Association) runs campaigns like Saksham for fuel efficiency.

    • (A) Incorrect

      Wrong: meaningless expansion.

    • (B) Incorrect

      Wrong: incorrect expansion.

    • (C) Correct

      Correct: PCRA (1978) promotes fuel conservation under MoPNG.

    • (D) Incorrect

      Wrong: incorrect expansion.

  132. Q132Open question

    In October 1943, Subhas Chandra Bose set up a Provisional Government of Free India, which was recognised by how many countries including Japan?

    1. 4
    2. 5
    3. 10
    4. 9
    Show answer & explanation

    Answer: (D) 9

    Explanation

    Recognising states included Japan, Germany, Italy, Croatia, Burma, Thailand, the Philippines, Manchukuo and Wang Jingwei's China.

    • (A) Incorrect

      Wrong: too few.

    • (B) Incorrect

      Wrong: too few.

    • (C) Incorrect

      Wrong: too many.

    • (D) Correct

      Correct: it was recognised by nine Axis-aligned states, including Japan, Germany and Italy.

  133. Q133Open question

    For which film did Payal Kapadia become the first Indian filmmaker to win the Grand Prix at the Cannes Film Festival in May 2024?

    1. All We Imagine as Light
    2. The Shameless
    3. The Man Who Could Not Remain Silent
    4. Sunflowers Were the First Ones to Know
    Show answer & explanation

    Answer: (A) All We Imagine as Light

    Explanation

    Payal Kapadia's 'All We Imagine as Light' won the Grand Prix, Cannes' second-highest honour.

    • (A) Correct

      Correct: it won the Grand Prix at Cannes 2024.

    • (B) Incorrect

      Wrong: Anasuya Sengupta won Best Actress (Un Certain Regard) for it.

    • (C) Incorrect

      Wrong: a short film (Palme d'Or for shorts), not Kapadia's.

    • (D) Incorrect

      Wrong: an FTII student short that won La Cinef.

  134. Q134Open question

    Which part of the alimentary canal receives bile from the liver?

    1. Stomach
    2. Oesophagus
    3. Small intestine
    4. Large intestine
    Show answer & explanation

    Answer: (C) Small intestine

    Explanation

    Bile from the liver/gall bladder reaches the duodenum via the common bile duct to emulsify fats.

    • (A) Incorrect

      Wrong: bile does not enter the stomach.

    • (B) Incorrect

      Wrong: only a food passage.

    • (C) Correct

      Correct: bile enters the duodenum (first part of the small intestine).

    • (D) Incorrect

      Wrong: does not receive bile directly.

  135. Q135Open question

    On which date was the Indian National Flag adopted by the Constituent Assembly?

    1. 26 November 1950
    2. 24 January 1950
    3. 26 January 1950
    4. 22 July 1947
    Show answer & explanation

    Answer: (D) 22 July 1947

    Explanation

    The tricolour with the Ashoka Chakra was adopted on 22 July 1947.

    • (A) Incorrect

      Wrong: wrong date.

    • (B) Incorrect

      Wrong: the national anthem and song were adopted then.

    • (C) Incorrect

      Wrong: Republic Day.

    • (D) Correct

      Correct: the Constituent Assembly adopted the tricolour on 22 July 1947.

  136. Q136Open question

    The size of the Council of Ministers was restricted to 15% of the Lok Sabha's strength by which Amendment?

    1. 92nd Amendment
    2. 95th Amendment
    3. 91st Amendment
    4. 93rd Amendment
    Show answer & explanation

    Answer: (C) 91st Amendment

    Explanation

    The 91st Amendment Act, 2003 inserted Article 75(1A) limiting the Union Council of Ministers to 15%.

    • (A) Incorrect

      Wrong: added four languages to the 8th Schedule.

    • (B) Incorrect

      Wrong: extended SC/ST reservation.

    • (C) Correct

      Correct: the 91st Amendment (2003) capped ministries at 15% and tightened anti-defection law.

    • (D) Incorrect

      Wrong: OBC reservation in educational institutions.

  137. Q137Open question

    Who won the Goldman Environmental Prize 2024 from the Asia region?

    1. Thai Van Nguyen, Vietnam
    2. Alok Shukla, India
    3. Chibeze Ezekiel, Ghana
    4. Delima Silalahi, Indonesia
    Show answer & explanation

    Answer: (B) Alok Shukla, India

    Explanation

    Alok Shukla (Chhattisgarh) won the 2024 Goldman Prize for Asia for protecting the Hasdeo Arand forests.

    • (A) Incorrect

      Wrong: he won in 2022.

    • (B) Correct

      Correct: honoured for saving Hasdeo Arand forests from coal mining.

    • (C) Incorrect

      Wrong: an African winner (2020).

    • (D) Incorrect

      Wrong: the 2023 Asia winner.

  138. Q138Open question

    Under the Royal Titles Act, Queen Victoria was proclaimed Empress of India in:

    1. 1875
    2. 1874
    3. 1877
    4. 1876
    Show answer & explanation

    Answer: (C) 1877

    Explanation

    The Royal Titles Act, 1876 gave Victoria the title 'Kaiser-i-Hind', proclaimed at Lord Lytton's Delhi Durbar in 1877.

    • (A) Incorrect

      Wrong: too early.

    • (B) Incorrect

      Wrong: too early.

    • (C) Correct

      Correct: she was proclaimed Empress at the Delhi Durbar on 1 January 1877.

    • (D) Incorrect

      Wrong: the Act was passed in 1876; the proclamation came in 1877.

  139. Q139Open question

    Which of the following pairs will give a displacement reaction?

    1. AgNO₃ solution and copper metal
    2. NaCl solution and copper metal
    3. FeSO₄ solution and silver metal
    4. MgCl₂ solution and aluminium metal
    Show answer & explanation

    Answer: (A) AgNO₃ solution and copper metal

    Explanation

    Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag: a more reactive metal displaces a less reactive one.

    • (A) Correct

      Correct: copper is more reactive than silver and displaces it.

    • (B) Incorrect

      Wrong: copper cannot displace sodium.

    • (C) Incorrect

      Wrong: silver is less reactive than iron.

    • (D) Incorrect

      Wrong: aluminium is less reactive than magnesium.

  140. Q140Open question

    The Andes extend along which of the following?

    1. West coast of India
    2. West coast of North America
    3. East coast of Australia
    4. West coast of South America
    Show answer & explanation

    Answer: (D) West coast of South America

    Explanation

    The Andes, the world's longest continental mountain range, run along western South America.

    • (A) Incorrect

      Wrong: that is the Western Ghats.

    • (B) Incorrect

      Wrong: that is the Rockies/Coast Ranges.

    • (C) Incorrect

      Wrong: that is the Great Dividing Range.

    • (D) Correct

      Correct: the Andes run along South America's Pacific coast.

  141. Q141Open question

    Within what time must the Governor return an ordinary bill to the State Legislature for reconsideration?

    1. Three months
    2. One month
    3. No time limit
    4. Two months
    Show answer & explanation

    Answer: (C) No time limit

    Explanation

    Article 200 sets no fixed time limit (the Supreme Court has since urged timelines, e.g. in the 2025 Tamil Nadu case).

    • (A) Incorrect

      Wrong: the Constitution prescribes no such period.

    • (B) Incorrect

      Wrong: not prescribed.

    • (C) Correct

      Correct: Article 200 only says 'as soon as possible', with no fixed limit.

    • (D) Incorrect

      Wrong: not prescribed.

  142. Q142Open question

    What is the profession of Arti, the young woman from U.P. who received the Amal Clooney Women's Empowerment Award at the King's Trust awards in May 2024?

    1. ASHA worker
    2. Farm labourer
    3. Chikankari artisan
    4. E-rickshaw driver
    Show answer & explanation

    Answer: (D) E-rickshaw driver

    Explanation

    Arti from Bahraich, a pink e-rickshaw driver, was honoured by The King's Trust for empowering women.

    • (A) Incorrect

      Wrong: not her profession.

    • (B) Incorrect

      Wrong: not her profession.

    • (C) Incorrect

      Wrong: not her profession.

    • (D) Correct

      Correct: Arti, an e-rickshaw driver from Bahraich, won the award.

  143. Q143Open question

    The process of breaking down organic matter by microorganisms is called:

    1. Respiration
    2. Photosynthesis
    3. Decomposition
    4. Fermentation
    Show answer & explanation

    Answer: (C) Decomposition

    Explanation

    Bacteria and fungi decompose dead matter, recycling nutrients.

    • (A) Incorrect

      Wrong: respiration releases energy from food in cells.

    • (B) Incorrect

      Wrong: builds organic matter, not breaks it.

    • (C) Correct

      Correct: decomposers break dead organic matter into simpler substances.

    • (D) Incorrect

      Wrong: a specific anaerobic process, not general breakdown.

  144. Q144Open question

    Which of the following Indian capitalists was NOT an architect of the 'Bombay Plan'?

    1. Dhirubhai Ambani
    2. J.R.D. Tata
    3. Lala Shri Ram
    4. G.D. Birla
    Show answer & explanation

    Answer: (A) Dhirubhai Ambani

    Explanation

    The 1944 Bombay Plan was drafted by Tata, Birla, Shri Ram, Thakurdas, Kasturbhai Lalbhai, Shroff, Dalal and John Matthai.

    • (A) Correct

      Correct: the Bombay Plan (1944) predates his business career.

    • (B) Incorrect

      Wrong: a signatory of the Bombay Plan.

    • (C) Incorrect

      Wrong: a signatory of the Bombay Plan.

    • (D) Incorrect

      Wrong: a signatory of the Bombay Plan.

  145. Q145Open question

    Which country became the first to bring back soil from the far side of the Moon in June 2024?

    1. USA
    2. China
    3. France
    4. India
    Show answer & explanation

    Answer: (B) China

    Explanation

    China's Chang'e-6 landed in the South Pole–Aitken basin and returned about 1.9 kg of far-side samples.

    • (A) Incorrect

      Wrong: Apollo samples came from the near side.

    • (B) Correct

      Correct: Chang'e-6 returned the first far-side samples in June 2024.

    • (C) Incorrect

      Wrong: France had an instrument on board, not the mission.

    • (D) Incorrect

      Wrong: Chandrayaan missions did not return samples.

  146. Q146Open question

    What is the name of the month-long cattle fair held at the confluence of the Ganga and Gandak rivers?

    1. Katihar Mela
    2. Sonepur Mela
    3. Purnia Mela
    4. More than one of the above
    Show answer & explanation

    Answer: (B) Sonepur Mela

    Explanation

    Sonepur Mela, starting on Kartik Purnima, is among Asia's largest cattle fairs.

    • (A) Incorrect

      Wrong: not at the Ganga–Gandak confluence.

    • (B) Correct

      Correct: Sonepur (Harihar Kshetra) Mela is held at the Ganga–Gandak confluence.

    • (C) Incorrect

      Wrong: not at this confluence.

    • (D) Incorrect

      Wrong: only Sonepur Mela fits.

  147. Q147Open question

    Who decides questions of disqualification of members of a State Legislative Assembly on grounds other than those in the Tenth Schedule?

    1. Governor
    2. Speaker of the Legislative Assembly
    3. State Election Commission
    4. High Court
    Show answer & explanation

    Answer: (A) Governor

    Explanation

    Under Article 192, the Governor's decision (bound by the ECI's opinion) on Article 191 disqualifications is final.

    • (A) Correct

      Correct: Article 192: the Governor decides, after the Election Commission's opinion.

    • (B) Incorrect

      Wrong: the Speaker decides only Tenth Schedule (defection) cases.

    • (C) Incorrect

      Wrong: the ECI (not SEC) gives an opinion; it does not decide.

    • (D) Incorrect

      Wrong: not the deciding authority.

  148. Q148Open question

    Which of the following is a major cause of air pollution?

    1. Disposal of plastics
    2. Burning of fossil fuels
    3. Deforestation
    4. Excessive use of pesticides
    Show answer & explanation

    Answer: (B) Burning of fossil fuels

    Explanation

    Combustion of coal, petrol and diesel in vehicles, industry and power plants is the main source of air pollution.

    • (A) Incorrect

      Wrong: mainly a land/water pollution issue.

    • (B) Correct

      Correct: releases CO₂, SO₂, NOx and particulates.

    • (C) Incorrect

      Wrong: harmful, but not a direct major source of air pollutants.

    • (D) Incorrect

      Wrong: mainly soil/water pollution.

  149. Q149Open question

    The Munger hilly region is a part of which physiographic region?

    1. Southern Hilly Region
    2. North Bihar Plain
    3. Someshwar Hilly Range
    4. South Bihar Plain
    Show answer & explanation

    Answer: (A) Southern Hilly Region

    Explanation

    Bihar's southern plateau/hill region includes the Kharagpur–Munger hills, Rajgir hills and the Kaimur plateau.

    • (A) Correct

      Correct: the Munger (Kharagpur) hills are an extension of the Chhotanagpur plateau.

    • (B) Incorrect

      Wrong: a flat alluvial plain.

    • (C) Incorrect

      Wrong: a Shivalik range in West Champaran.

    • (D) Incorrect

      Wrong: the hills rise above the plain, belonging to the southern plateau.

  150. Q150Open question

    Who was the first to propose a model for the structure of an atom?

    1. E. Goldstein
    2. Rutherford
    3. Niels Bohr
    4. J.J. Thomson
    Show answer & explanation

    Answer: (D) J.J. Thomson

    Explanation

    Sequence of atomic models: Thomson (1904) → Rutherford (1911) → Bohr (1913).

    • (A) Incorrect

      Wrong: he discovered canal rays, not an atomic model.

    • (B) Incorrect

      Wrong: his nuclear model (1911) came after Thomson's.

    • (C) Incorrect

      Wrong: his model (1913) came later.

    • (D) Correct

      Correct: Thomson proposed the first model ('plum pudding', 1904).

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