What is the reason for carbon not being used for the reduction of aluminium from aluminium oxide? Choose the correct option from the following:

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Aluminium has greater affinity for oxygen than for carbon

None of the above

Both of the above

Carbon cannot reduced alumina to aluminium

answer is C.

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Detailed Solution

Carbon is not being used for the reduction of aluminium from aluminium oxide because carbon can not reduce alumina to aluminium.
Aluminium is a reactive metal and carbon is a non metal. The reason for carbon not being used in the reduction of aluminium from aluminium oxide is that aluminium has a greater affinity for oxygen than that for a carbon and also carbon cannot reduce alumina to aluminium. This is the reason why carbon is not used in the reduction.

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