Question

In the electrolytic process for the extraction of aluminium the electrolyte is:-

Options

• AI(OH)₃ in NaOH solution

• An aqueous solution of Al₂(So₄)₃

• A molten mixture of Al₂O₃ and Na₃AlF₆

• A molten mixture of Al₂O₃ and A₁(OH)₃

Answer 1

A molten mixture of Al₂O₃ and Na₃AlF₆ 

Explanation:

The molten mixture of (alumina) and Na₃AlF₆ is known as electrolyte (rhyolite).