Physics, asked by chinnurkarkaveri, 3 months ago

Anodes need to be replaced from time to time during the
electrolysis of alumina​

Answers

Answered by Akshaydagar
1

Answer:

During electrolysis of alumina , the oxygen liberated at the carbon anode reacts with graphite rods and forms carbon dioxide . As the anodes gets oxidised during electrolysis of alumina, they are continuously eroded. Hence , it is necessary to replace anodes from time to time

Answered by kamblesushma816
0

Answer:

In the electrolysis of alumina, graphite rod is used as anode.

  • During the electrolytic reduction of alumina, aluminium produced at the cathode and oxygen gas is evolved at the anode.
  • This gas reacts with the graphite rods (anode) and forms carbon dioxide.

Thus, the graphite rods are continuously eroded. Hence, anode are replaced from time to time during the electrolysis of alumina.

Explanation:

I hope it will help you...✍

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