explain inert and labile complex with suitable example.

Labile complexes means it can remove the ligand and substitute with other ligand easily. While inert complexes are thosecomplexes which can't remove ligands easily. Strong electrostatic force of attraction between metal and ligand makes the complex inert.
Transition metal complexes which undergo rapid substitution of one ligand for another are labile, whereas complexes in which substitution proceed slowly or not at all are inert.

For an inert complex, it is a large activation energy which prevents ligand substitution..

Strong electrostatic force of attraction between metal and ligand makes the complex inert.