Question

Aluminium is prepared in large quantities by
(a) heating cryolite in a limited quantity of air
(b) reducing aluminium oxide with coke
(c) reducing aluminium oxide with sodium
(d) electrolysing aluminium oxide dissolved in fused electrolyte

Answer 1

The correct answer is

Option d)

electrolysing aluminium oxide dissolved in fused electrolyte .

Where Al2O3 is electrolysed with fused florspar and cryolite.