NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · પ્રશ્ન 95

Which of the following are the constituents of brass?

  1. Iron and zinc
  2. Copper and nickel
  3. Iron and copper
  4. Zinc and copper
  5. None of the above / More than one of the above
જવાબ બતાવો અને સમજૂતી

જવાબ: (D) Zinc and copper

સમજૂતી

Brass = copper + zinc; bronze = copper + tin.

  • (A) ખોટો

    Wrong: not brass.

  • (B) ખોટો

    Wrong: that is cupronickel.

  • (C) ખોટો

    Wrong: not brass.

  • (D) સાચો

    Correct: brass is an alloy of copper and zinc.

  • (E) ખોટો

    Wrong: only one of the options A–D is correct.