Why does the colour of cooper sulphate change when aniron nail is dipped in it?
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the colour of copper sulphate changes because iron displaces copper to form iron sulphate.
CuSO4+Fe------->FeSO4+Cu.
CuSO4+Fe------->FeSO4+Cu.
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when iron nail is dipped in coppersulphate colour is change because iron is more reactive than copper so it displaces copper from coppersulphate and make iron sulphate
CuSO4 + Fe= FeSO4 + Cu
and color of ferrous sulphate is light green
CuSO4 + Fe= FeSO4 + Cu
and color of ferrous sulphate is light green
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