Question

Which of the following reactions not occur? 

A. 2AgNO₃(aq) + Zn(s) → Zn(NO₃)₂(aq)+ 2Ag(s) 

B. CuSO₄(aq)+ Zn(s) → ZnSO₄(aq)+ Cu(s) 

C. 2AgNO₃(aq)+Fe(s) → Fe(NO₃)₂(aq) + 2Ag(s) 

D. CuSO₄(aq) + 2Ag(s) → Cu(s)+ Ag₂SO₄ (aq)

Answer 1

Among all the reactions, the reaction d is only not possible because silver is less reactive as compared to copper and hence it cannot displace copper from its salt. 

So correct answer is d.