why thus the colour of the copper sulphate solution change when an iron nail is dipped in it
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Answer:
because fe displaces cu
Explanation:
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When iron nail is dipped in copper sulphate solution, than iron sulphate solution and copper solution and copper metal are formed:
CuSO4 (aq) + Fe (s) —> FeSO4 (aq) + Cu (s)
In this reaction, iron displaces copper from copper sulphate solution. The deep blue colour of copper sulphate fades due to the formation of light green solution of iron sulphate.
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