Question

write balanced chemical equation,when iron filling are we kept in blue coloured solution of copper sulphate​

Answer 1

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When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

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Answer 2

Answer:

fe+cuso4=feso4+cu [iron displaces copper from its solution because iron is placed in up position than copper in reactivity series]