Question

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

Answer 1

Answer:

The colour of copper sulphate solution, also known as blue vitriol, changes its colour from blue to green because Iron, being more reactive than copper, displaces Copper from the solution, forming Ferrous sulphate solution.

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Answer 2

Answer:

Explanation:

As iron is more reactive than copper, it displaces copper. And color of copper sulphate solution changes.

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