`CN^(-)` is a strong field ligand. This is due to the fact that :

Options

A. It can accept electron from metal species
B. It forms high spin complexes with metal species
C. It carriės negative charge
D. It forms low spin complexes

Answer

D

Explanation

Cyanide ion is strong field ligand because it is a.pseudohalide ion, pseudohalide ions are stronger coordinating ligands and they have the ability to form `sigma` bond (from the pseudohalide to the metal) and `pi` bond (from the metal to pseudohalide).