Question

Why do the colour & solution of copper sulphate change when we take a solution of

copper sulphate in a beaker and put an iron nail in it?​

Answer 1

Explanation:

the colour and solution of copper sulphate changes when an iron nail is put in it because as iron is a more reactive element than the copper so it displaces copper from its solution

It's equation is..

CuSO4 + Fe = FeSO4 + Cu

It is an example of displacement reaction

as iron displaces copper from its solution

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Answer 2

Answer:

Iron is

Explanation:

IRON is more reactive than copper so it displace copper