Question

A zinc plate was kept in a glass container having `CuSO_(4)` solution. On examining it was found that the blue colour of the solution is getting lighter. After a few days, when the zinc palte was taken out of the solution, a number of small holes were noticed in it. state the reason and give chemical equation of the reaction invovled.

Answer 1

Zinc metal is more reactive than copper. Some of the zinc metal of zinc plate dissolves and displaces copper fro copper sulphate solution. This dissolving of zinc metal forms tiny holes in zinc plate. Blue colour of copper sulphate solution gets lighter and lighter due to the formation of colourless zinc sulphate solution.