Question

Match the following components involved in the electrolytic refining of aluminium with its corresponding pair.

• A. Molten crude $Al$
• B. $N{a}_{3}Al{F}_6+Ba{F}_2$
• C. Pure $Al$

Answer 1

Electrolytic refining is a purification technique used to purify crude metal by using electricity. In the electrolytic refining of aluminium, molten crude $Al$ is taken as the anode, pure $Al$ as the cathode and $N{a}_{3}Al{F}_6+Ba{F}_2$ as the electrolyte.