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In the thermite reaction \(Fe_2O_3 + 2Al \rightarrow Al_2O_3 + 2Fe\), which substance is reduced?

Answer and explanation

Correct answer: Iron(III) oxide

In \(Fe_2O_3\), iron has oxidation state \(+3\), which becomes \(0\) in the product \(Fe\). A decrease in oxidation state indicates reduction; therefore, iron(III) oxide is reduced. In contrast, aluminium changes from \(0\) to \(+3\), so it is oxidised.

Related tags

Chemical ReactionsRedox ReactionsThermite ReactionOxidation StatesClass 10 Science

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