1.

`CN^(-)` is a strong field ligand. This is due to the fact thatA. it carries negative chargeB. it is pseudo-halideC. it can accept electrons from metal speciesD. it forms high spin complexes with metal species.

Answer» Correct Answer - B
Cyanide ion is strong field ligand because it is a pseudohalide. Psudohalide ions are stronger coordination ligands and they have the ability to forms `sigma`-bond (from the pseudohalide to the metal) and `pi` -bond (from the metal to pseudo-halide).


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