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Question

Reaction of zinc with copper sulphate solution is:

A
Zn+2CuSO4ZnSO4+2Cu
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B
2Zn+CuSO42ZnSO4+Cu
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C
Zn+CuSO4ZnSO4+Cu
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D
none of these
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Solution

The correct option is C Zn+CuSO4ZnSO4+Cu
on adding zinc to CuSO4 solution, zinc displaces copper from copper sulphate & forms zinc sulphate solution because zinc is more reactive metal which displaces less reactive metal from its solution.

This is indicated by a colour change from blue to colourless.

CuSO4 solution has a blue colour while ZnSO4 solution is colourless.

Zn+CuSO4ZnSO4+Cu

Option C is correct.

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