Name the process by while the impure ore of aluminium gets purified by using a conc. Soln. of an alkali.

Name the process by which impure ore of aluminium gets purified by using concentrated solution of an alkali.

(i) Name the most common ore of the metal aluminum from which the metal is extracted. Write the chemical formula of the ore. (ii) Name the process by which impure ore of aluminum gets purified by using concentrated solution of an alkali. (iii) Write the equation for the formation of aluminum at the cathode during the electrolysis of alumina.

Impure aluminium is purified by :

Name the principal ore of aluminium.

Name the most important ore of aluminium.

Name the chief ores of aluminium and zinc.

The chemical name - of the main ore of aluminium.

Name an ore each of aluminium and iron