Add nail i. CuSO4 solution.The colour of CuSO4 disappears why
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may be iron get reacted with cuso⁴ and forms FeSO⁴ + copper, that's why colour changes
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Iron nail contains iron that is more reactive than copper. The copper sulphate solution will be changed into iron sulphate.This is called displacement reaction. The equation is written below
CuSO4+Fe=FeSO4
CuSO4+Fe=FeSO4
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