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Which of the following reactions involves oxidation of one substance and reduction of another substance simultaneously?

Answer and explanation

Correct answer: \(\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}\)

Option B is a redox reaction. The oxidation state of Zn changes from \(0\) to \(+2\), so Zn is oxidised. In \(\mathrm{CuSO_4}\), Cu changes from \(+2\) to \(0\), so Cu is reduced. In contrast, option C is a neutralisation reaction, in which oxidation states do not change.

Related tags

Redox ReactionOxidation NumberChemical ReactionsDisplacement ReactionClass 10 Science

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