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Aluminium is extracted commercially from its ore by?


Question

Aluminium is extracted commercially from its ore by?

Options

A) heating aluminium oxide with coke in a furance

B) the electrolysis of fused aluminium oxide in cryolite

C) treating cryolite with sodium hydroxide solution under prressure

D) heating sodium aluminium silicate to a high temperature


The correct answer is B.


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