Question

11. A zinc plate was put into a solution of copper sulphate kept in a glass container. It was Tound that blue
colour of the solution gets fader and fader with the passage of time. After few days, when zinc plate
was taken out of the solution, a number of holes were observed on it.
(i) State the reason for changes observed on the zinc plate
(ii) Write the chemical equation for the reaction involved

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Answer 1

Answer:

(i)Zinc is more reactive than copper. It displaces Cu from CuSO4 and hence copper gets deposited on Zinc plate.

(ii)  Zn + CuSO4 → ZnSO4 + Cu