Question

Colour of copper sulphate solution changes when an iron nail is dipped in it. Give reason.

Answer 1

Hey!!!!

First of all colour of
copper sulphate solution = blue
iron sulphate solution = green

Now in the reactivity series Fe> Cu


Thus when we dip an iron nail in a copper sulphate solution, the iron displaces the copper from its salt solution and forms iron sulphate.

Thus the colour changes from blue to green.

That's a chemistry answer from a commerce student.

Hope this helps

Answer 2

colour of copper sulphate changes when react with iron nail this is because

CuSo4 + fe ---->FeSo4. +Cu

as the above reaction shows that iron(fe) is more reactive than copper that's why iron is able to displace copper from it's solution so the colour of copper sulphate (blue) changes as the product formed FeSo4 (slight green).


I hope this may help you...