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In which of the following reactions does a more reactive metal displace a less reactive metal from its salt solution?

Answer and explanation

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

Option A is a single-displacement reaction. Zinc lies above copper in the reactivity series, so Zn can replace Cu from copper sulphate solution: Zn + CuSO₄ → ZnSO₄ + Cu. Option B is decomposition because one compound splits into simpler substances. Option C is neutralisation, and option D is a combination reaction. Thus only A shows a more reactive metal displacing a less reactive one.

Related tags

Displacement ReactionReactivity SeriesZincCopper SulphateMetalsMetals And Non MetalsScienceClass 10 Mcq

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