1.Why does the colour of copper sulphate solution change whenan iron n – InterviewSolution

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1.	1.Why does the colour of copper sulphate solution change whenan iron nail is dipped in it?
Answer» Ironismore reactive thancopper. So, when an iron nailisdipped in acopper sulphate solution, iron displacescopperfrom itssolutionto form ironsulphate, whichis greenincolor. Hence, the bluecolor of copper sulphate solution changesintogreen colorbecause of this displacement reaction.

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