Question

During hoops process of electrolytic refining of aluminum the middle layer is of

Answer 1

The process. The cell used in this process consists of an iron tank lined with carbon at the bottom. A molten alloy of copper, crude aluminium and silicon is used as the anode. ... During electrolysis, Al3+ ions from the middle layer migrate to the upper layer, where they are reduced to aluminum by gaining 3 electrons.

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