Why cannot aluminium metal be obtained by the reduction of aluminium oxide with coke?

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Solution

Aluminium oxide $(A l_{2} O_{3})$ cannot be reduced by coke because it is a highly stable oxide and aluminium has a strong affinity for oxygen. Hence, $A l_{2} O_{3}$ has to be reduced to Al electrolytically.

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Why cannot aluminium metal be obtained by the reduction of aluminium oxide with coke?

Aluminium oxide (Al2O3) cannot be reduced by coke because it is a highly stable oxide and aluminium has a strong affinity for oxygen. Hence, Al2O3 has to be reduced to Al electrolytically.

Aluminium oxide $(A l_{2} O_{3})$ cannot be reduced by coke because it is a highly stable oxide and aluminium has a strong affinity for oxygen. Hence, $A l_{2} O_{3}$ has to be reduced to Al electrolytically.