Question

In the electrolytic process for the extraction of aluminium, the electrolyte is :
A. `Al(OH)_(3)` in NaOH solution
B. An aqueous solution of `Al_(2)(SO_(4))_(3)`
C. A molten mixture of `Al_(2)O_(3) " and " Na_(3)AlF_(6)`
D. A molten mixute of `Al_(2)O_(3) " and " Al(OH)_(3)`

Answer 1

Correct Answer - C
Electrolyte is molten mixture of `Al_(2)O_(3)` (alumina) and `Na_(3)AlF_(6)` (cryolite)