In the extraction of aluminium the electrolyte is:
A
fused cryolite with felspar
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B
fused cryolite with fluorspar
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C
pure alumina in molten cryolite with fluorospar
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D
pure alumina with bauxite and molten cryolite
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Solution
The correct option is C pure alumina in molten cryolite with fluorospar In the extraction of aluminium by electrolytic process alumina Al2O3 is used along with fluorspar and cryolite in molten state.