Question

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

Answer 1

Answer:

An iron nail is dipped in copper sulphate solution , it displaces copper. the colour of the solution fades from Blue to light or pale green solution of iron sulphate.

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Answer 2

Answer:

when the iron nail is immersed in the solution of copper sulphate then iron displaces copper from the solution of the copper sulphate because iron is more reactive than copper. careful copper sulphate solution colour change from blue to pale green