Question

When an iron rod is dipped into a solution of copper sulphate copper is displaced.why is it so?

Answer 1

When iron is dipped in CuSO4 a displacement reaction takes place. In this, iron being a more reactive metal displaces a lesser reactive metal Copper(Cu) from its compound to form FeSO4.
Fe + CuSO4 --- FeSO4 + Cu
The green coloured solution is Ferrous sulphate(FeSO4) which is taken from iron.

Answer 2

When iron is dipped in CuSO4 a displacement reaction takes place. In this, iron being a more reactive metal displaces a lesser reactive metal Copper(Cu) from its compound to form FeSO4.

Fe + CuSO4 --- FeSO4 + Cu

The green coloured solution is Ferrous sulphate(FeSO4) which is taken from iron.