Question

During electrolytic production of aluminium the carbon anode are replaced time to tine why

Answer 1

During the electrolysis process, aluminium is deposited at the cathode and oxygen is liberated at the anode. Some of this oxygen reacts with the carbon in the graphite to form carbon-dioxide, thus slowly burning away the anodes. Thus, the anodes have to replaced periodically.

Answer 2

Answer:

During the production of aluminium at the carbon anode are replaced to the tine particles