Question

why does the colour of copper sulphate solution change when an iron nail is dipped in it​

Answer 1

Answer:

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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:

silver type of puricc solution change in copper mixed in all dies copper sulphate and iron nail then change in silver colour

Explanation:

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