Iron displaces copper from copper sulphate solution but platinum displaces copper from the same solution.

Iron displaces copper from copper sulphate solution because

Explain why zinc metal can displace copper from copper sulphate solution but copper displace zinc from zinc sulphate solution.

Zinc can displace copper from copper sulphate solution bacause zine is

Lead is added to copper sulphate solution.

Explain why aluminium metal can displace copper from copper sulphate solution but copper cannot displace aluminium from aluminium sulphate solution ?

Which metal can deposit copper from copper sulphate solution ?