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In the metallurgy of aluminium...

In the metallurgy of aluminium

A

`Al^(3+)` is oxidised to Al(s)

B

Graphite anode is oxidised to carbon monoxide and carbon dioxide.

C

Oxidation state of oxygen changes in the reaction at anode.

D

Oxidation state of oxygen changes in the overall reaction involved in the process.

Text Solution

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The correct Answer is:
B
The oxidation state of O does not change in either the reaction.
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