Question

Why is electrolytic reduction done to obtain aluminium ?

Answer 1

An electrolytic reduction is a form of electrolysis in which an electric current passes through an ionic substance in a molten or aqueous state resulting in the reaction on electrodes and decomposition of the material.

1. Aluminium is obtained by electrolytic reduction of aluminium oxide.
2. Aluminium oxide is a very stable compound as aluminium has a greater affinity for oxygen.
3. It is not easily reduced by common reducing agents such as carbon monoxide $\left(\mathrm{CO}\right)$.

Hence, the electrolytic reduction is done to obtain aluminium.