BPSC – Combined Competitive Examination · પ્રશ્ન 139
Which of the following pairs will give a displacement reaction?
જવાબ બતાવો અને સમજૂતી
જવાબ: (A) AgNO₃ solution and copper metal
સમજૂતી
Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag: a more reactive metal displaces a less reactive one.
- (A) સાચો
Correct: copper is more reactive than silver and displaces it.
- (B) ખોટો
Wrong: copper cannot displace sodium.
- (C) ખોટો
Wrong: silver is less reactive than iron.
- (D) ખોટો
Wrong: aluminium is less reactive than magnesium.