Question

Mr. Ramu wants to electroplate his key chain with nickel to prevent rusting, For this electroplating. Name the electrolyte.

Answer 1

Electroplating is done by a process in which a thin layer of metal like nickel, gold, chromium, etc. is deposited on another metal article by electrolysis.

1. Aqueous nickel sulphate $\left({\mathrm{NiSO}}_4\right)$ solution is used as electrolyte by Mr. Ramu for electroplating his key chain with nickel to prevent rusting.
2. The nickel ions from nickel sulphate gets deposited on the key chain.

Chemical reaction: $$\begin{gathered} {\mathrm{NiSO}}_4\to {\mathrm{Ni}}^{2+}+{\mathrm{SO}}_4^{2-} \\ \mathrm{nickel}\mathrm{sulphate}\mathrm{nickel}\mathrm{ion}\mathrm{sulphate}\mathrm{ion} \end{gathered}$$