What is the significance of leaching in the extraction of aluminium?

The signifificance of leaching in the extraction of aluminume is

The signifificance of leaching in the extraction of aluminume is

Name the principal ore of aluminium. Explain the significance of leaching in the extraction of aluminium.

Name the principal ore of aluminium. Explain the significance of leaching in the extraction of aluminium.

What is the role of leaching in the extraction of aluminium ? Write all the chemical reactions involved in it.

Explain alkali leaching in the extraction of aluminium.

(i) What is the role of cryolite in the extraction of aluminium ? (ii) What is the role of limestone in the extraction of iron from its oxides ?