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 changes when an iron nail is dipped in it because iron is more reactive than copper. A substance which releases ions are called acids. When an "iron nail" dips into the solution of "copper sulphate" than iron, the copper sulphate displaces copper because "iron" is " more reactive " than "copper".

Explanation:

Answer 2

Answer:

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