In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of :
Question:

In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of :

  1. Platinum

  2. Carbon

  3. Pure aluminium

  4. Copper


Correct Option: , 2

Solution:

In the Hall-Heroult process the cathode is made of carbon.

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