Which of the following statement(s) is/are correct for the extractive metallurgy of aluminium?

Options

A. Red bauxite contains the impurities of `Fe_(2)O_(3),SiO_(2)` and `TiO_(2)`
B. Red bauxite is purified by Hall's and serpeck's process
C. Hall-heroult process is used for the electrolytic reduction of molten alumina dissolved in molten cryolite
D. In Hall-Heroult process carbon lining steel anode and graphite rods as cathode are used.

Answer

A, C

Explanation

(D). In hall-Heroult process carbon lining steel cathode and graphite rods as anode are used