Question

The electrolyte used in Hall and Heroult process is:

Options

• Alumina (20%)

• Cryolite (60%)

• Fluorspar (20%)

• All of these

Answer 1

All of these

Explanation:

The electrolytic bath used in this extraction process is a fused mixture consisting of roughly 20% alumina, 60% cryolite, and 20% fluorspar.