The following questions relate to the extraction of aluminium by elect – InterviewSolution

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1.	The following questions relate to the extraction of aluminium by electrolysis. Explain why is it necessary to renew the anode periodically.
Answer» The anode (which is made of carbon) is attacked by nascent oxygen formed due to the discharge of O^2- ions and changes to carbon dioxide. As the anode is gradually consumed, it is periodically renewed.

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