Give one example to chemical displacement.

Explanation

1) In displacement reaction one element displaces another element from its compound and takes its place there in.
For example :
2) Take copper sulphate solution in a test tube and dip one iron nail in the solution.
Observation :
3) The blue colour of copper sulphate solution fades.
4) Iron is more rective than copper, so it displaces copper from copper sulphate.
5) This is chemical displacement reaction.
6) The chemical reaction in this way.
`Fe+CuSO_(4)rarr FeSO_(4)+Cu`