Question

Blue colour copper sulphate solution changes its colour when zinc granules are put into it. why

Answer 1

In the reactivity series, we can see that zinc has a higher reactivity than copper. So when we add zinc to copper sulphate solution, the zinc displaces the copper from the solution. Thus the copper gets deposited and the solution changes its colour. Hope this helped.

Answer 2

Explanation:

the colour of solution is due to ions the go cupric iron is blue in colour zinc ions is colourless when zinc granules are added to solution of copper sulphate zinc displaces copper form zinc sulphate anthus copper get deposited