\({MCl}_{3} \cdot 2 {~L} \stackrel{{Ex} . {AgNO}_{3}}{\longrightarrow} 1 {~mole} \text { of } {AgCl}\)
Its means that one \({Cl}^{-}\)ion present in ionization sphere.
\(\therefore \text { formula }=\left[{MCl}_{2} {~L}_{2}\right] {Cl}\)
For octahedral complex coordination no. is \(6\)
\(\therefore {L}\) act as bidentate ligand