Question

why does the colour of cooper sulphate change when an iron nail is dipped in it​

Answer 1

Hi friend!

This is because iron displaces copper from its solution. A displacement reaction takes place.

Hope it helps you!!!!

Answer 2

Explanation:

when the colour of copper sulphate changes when in iron nail is dipped in it because copper nail because copper displaces iron is this iron is more reactive than copper so this is a displacement reaction