Explain the following terms giving suitable examples in each case
(i) Ambidentate ligand
(ii) Denticity of a ligand
(iii) Crystal field splitting in an octahedral field.

Explanation

(i) Ambident ligand : Ligand which can Ligate throught tow differnet atom is called ambident ligand. Example `NO_(2)^(-),SCN^(-), CN^(-)NO_(2)^(_)`can link throught 'N' as well as oxgyen while `SCN^(-)` can link through S' as well N atom.
(ii) Denticity of a ligand: The number of ligating : The number of ligating atoms present in ligand is called denticity of ligand eq.
`CN-"has"1,underset(COO^(-))underset(|" has2")(COO^(-))`
`H_(2)overset(..)N-CH_(2) -CH_(2)-NH-CH_(2)-CH_(2)overset(..)NH_(2)` has 3.
(iii) Crystal field spliting in an octahedral field: