Bauxite is purified by using _______?

باکسائٹ _______ کا استعمال کرکے پاک ہے؟

Serpeck’s method

Hall’s method

Baeyer’s method

All of these

Bauxite is purified using Hall’s, Baeyer’s, and Serpeck’s methods, depending on the impurities present.

Hall’s method is used for electrolytic reduction.

Baeyer’s for alumina extraction.

Serpeck’s for silica-rich bauxite.