Question

why is carbon not used as reducing aluminium from aluminium oxide?

Answer 1

Metals such as zinc, iron and copper are present in ores as their oxides. Each of these oxides is heated with carbon to obtain the metal. The metal oxide loses oxygen, and is therefore reduced. ... Some metals, such as aluminium, are so reactive that their oxides cannot be reduced by carbon.

Answer 2

because aluminum has more affinity for oxygen than carbon.

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