Reaction of zinc with copper sulphate solution is:
A
Zn+2CuSO4→ZnSO4+2Cu
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B
2Zn+CuSO4→2ZnSO4+Cu
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C
Zn+CuSO4→ZnSO4+Cu
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D
none of these
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Solution
The correct option is CZn+CuSO4→ZnSO4+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.