Question

hundred ml of copper sulphate solution was taken in a beaker a small amount of iron filling was added and left undisturbed what will what will be the colour of Residue

Answer 1

The residue will be of brown color . This is as iron displaces copper from the solution and iron sulphate is formed . The colour changes to pista green from blue and the residue that is copper is brown in colour.

Answer 2

We observe that the blue colour of copper sulphate changed to green

Iron filling displace copper