Question

Which of the following metals will not react with solution of CuSO₄?

(a) Fe

(b) Zn

(c) Mg

(d) Ag

Answer 1

Correct option is (d) Ag

Metal Zinc sodium and Fe will replace Cu from copper sulphate as it is more reactive.

By reactivity series of metal only the metals which lie above cu can displace Cu from its compound.

REACTIVITY SERIES

K> Na > Ca > Mg > Al > Zn > Fe > Ni > Sn > Pb > HYDROGEN > Cu > Hg > Ag > Au > Pt.