Why does the colour of copper sulphate solition change when an iron na

1.	Why does the colour of copper sulphate solition change when an iron nail is dipped in it?
Answer» Because iron is more reactive than copper so iron displaces copper from copper sulphate and forms iron sulphate hence the colour of solutions change When an iron nail dipped in the copper sulphate solution than iron displaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes.The reaction involved isFe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)

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