Question

Why does iron displace copper from its salt solution?

Answer 1

Displacement Reaction:

• In the displacement reaction, the metals which are present above in the reactivity series can displace the metals which are placed below from its salt solution.

The reason, why iron displaces copper, from its salt solution:

• The ion ($\mathrm{Fe}$) is placed above copper ($\mathrm{Cu}$) due to which it can displace the copper from its salt solution.
• $$\begin{gathered} {\mathrm{CuSO}}_4\left(\mathrm{aq}\right)+\mathrm{Fe}\left(\mathrm{s}\right)\to {\mathrm{FeSO}}_4\left(\mathrm{aq}\right)+\mathrm{Cu}\left(\mathrm{s}\right) \\ \mathrm{Copper}\mathrm{Iron}\mathrm{Iron}\mathrm{Sulphate}\mathrm{Copper} \\ \mathrm{sulphate} \end{gathered}$$