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In the thermite reaction \(Fe_2O_3 + 2Al \rightarrow Al_2O_3 + 2Fe\), which substance acts as the reducing agent?

Answer and explanation

Correct answer: \(Al\)

The oxidation state of Al increases from 0 to +3, so Al is oxidised and loses electrons. These electrons reduce Fe³⁺ in \(Fe_2O_3\) to Fe. Therefore, Al is the reducing agent. In contrast, \(Fe_2O_3\) accepts electrons and acts as the oxidising agent.

Related tags

Redox ReactionThermite ReactionReducing AgentOxidation NumberChemical ReactionsClass 10 Science

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