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Answer: Zinc displaces copper from copper sulphate and generates zinc sulphate solution when added to CuSO4 solution because zinc is a more reactive metal that displaces less reactive metal from its solution.
A color change from blue to colorless indicates this.
The color of CuSO4 solution is blue, while ZnSO4 The solution is colorless.
The chemical equation of the reaction,
Zn + CuSO4 → ZnSO4 + Cu.
