Question

Why does the colourof copper sulphatesolution change when an iron nail is dipped in it?

Answer 1

Answer:

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". Hence the colour of the solution for copper sulphate changes.

Explanation:

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Answer 2

Answer: when an iron nail dips into the solution of copper sulphate, the iron displaces copper because iron is more reactive than copper. Hence the colour of solution changes.

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