Question

1. What is the role of cryolite in the metallurgy of aluminium?

2. Match the following :

Metal	Process
1. Al	Mond’s process
2. Si	van Arkel process
3. Zr	Zone refining
4. Ni	Leaching

Answer 1

1. Cryolite is used as a solvent to dissolve alumina.

2. 

• Al → Leaching
• Si → Zone refining
• Zr → van Arkel process
• Ni → Mond’s process