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Question

Justify with the help of an example that displacement reaction is also a redox reaction.

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Answer

Consider the following displacement reaction in which Fe displaces Cu from CuSO₄ to form FeSO₄:

Fe(s)+CuSO4(aq)→FeSO4(aq)+Cu(s)Fe(s) + CuSO₄(aq)

Explanation: In the above reaction, Fe is gaining oxygen. Hence, Fe is oxidised. CuSO₄ is losing oxygen. Hence, it is reduced. So, it is a redox reaction.

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