Question

state the reason for addition on powder coke in electrolitic cell during the electrolitic of aluminia​

Answer 1

Answer:

Cell operation

Oxidation of the carbon anode increases the electrical efficiency at a cost of consuming the carbon electrodes and producing carbon dioxide. ... The electrolytic mixture is sprinkled with coke to prevent the anode's oxidation by the oxygen evolved. The cell produces gases at the anode.

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