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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%). [Wrong Answer] |
B. | keep the electrolyte in liquid condition by the generation of heat. [Wrong Answer] |
C. | electrolytically dissociate alumina. [Wrong Answer] |
D. | both(b) & (c). [Correct Answer] |