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Q.

Ferric oxide reacts with aluminium to produce aluminium oxide and iron. The balanced chemical equation for the given reaction is represented as

Fe2O3 (s)+ 2Al (s)→ Al2O3 (s)+ 2Fe (s)

In the given reaction, the oxidised and reduced elements are

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a

Al and Fe2O3 respectively

b

Fe2O3 and Al respectively

c

Al2O3 and Fe respectively

d

Fe and Al2O3 respectively

answer is B.

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Detailed Solution

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In a redox reaction, the substance that either gains oxygen or loses hydrogen is oxidised. On the other hand, the substance that loses oxygen or gains hydrogen is reduced.

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In the given reaction, aluminium gains oxygen to form aluminium oxide. Hence, aluminium is oxidised. Ferric oxide (Fe2O3) loses oxygen to form iron (Fe). Hence, Fe2O3 is reduced in the given process.

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