What changes in the colour of iron nail do you observe after keeping the iron nail dipped in copper

Question

What changes in the colour of iron nail do you observe after keeping the iron nail dipped in copper sulphate solution for about 20 minutes?

Professor PC Thomas Classes · Answer

(b) : $\mathrm{Fe}_{(s)}+\mathrm{CuSO}_{4(a q)} \longrightarrow \mathrm{FeSO}_{4(s)}+\mathrm{Cu}_{(s)}$