during the electrolysis in the attraction of Al by hall heroults process alluminium is deposited at the cathode and oxygen is liberated at the anode which reacts with carbon in the graphite to form carbon dioxide so carbon is burnt away. thus the anode has to be replaced perically..it is the ans ....
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During the electrolysis in the extraction of Al by Hall Heroults process, aluminum is deposited at the cathode and oxygen is liberated at the anode which reacts with carbon in the graphite to form carbon-dioxide, so carbon is burnt away. thus the anode has to be replaced periodically. hope so it will be useful to you dear friend ☺️
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