Question

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

Answer 1

Explanation:

when an iron strip is dipped in copper sulphate solution it forms of sulphate which turns blue solution to Green since iron is more reactive than copper

Answer 2

Answer:

When an iron nail is dipped is copper sulphate solution (blue colour) its colour changes to

Green because iron being more reactive than copper displaces it from its solution and ferrous sulphate solution is prepared which is of green colour.

Equation.

CuSO4 +Fe - - - - - FeSO4 + Cu

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