Question

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Question =>

Aluminum oxide cannot be reduced by carbon? Give Reason

Answer 1

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This is because sodium and magnesium are more reactive than carbon.

This means that carbon cannot reduce the oxides of these metals.

The two metals are above carbon in the reactivity series and thus have a high affinity to oxygen than carbon does and thus cannot be reduced by it.

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Answer 2

Some metals as zinc, copper , iron is present in ores in form of oxides.

Above metals can be reduced by carbon during extracting.

But, it cannot reduce aluminium because aluminium is higher in reactivity series than carbon.

Also aluminium oxides are very stable .

Hence, carbon is no suitable for reduce aluminium oxides.

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