Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating at 800 - 900°C. The purpose of electric current supplied to the furnace is to
A. Achieve very high purity of aluminium (99.9%)
B. Keep the electrolyte in liquid condition by the generation of heat
C. Electrolytically dissociate alumina
D. Both (B) & (C)
Answer: Option D
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