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CN^(-) is a strong field ligand. This is...

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

A

(a) It can accept electron from metal species

B

(b) it forms high spin complexes with metal species

C

(c) it carries negative charge.

D

(d) it is a pseudohalide

Text Solution

Verified by Experts

The correct Answer is:
D
Cyanide ion is strong field ligand because it is a pseudohalide ion. Pseudohalide ions are stronger coordinating ligand & they have the ability to form `sigma` bond (from the pseudohalide to the metal) and `pi` bond (from the metal to pseudohalide).
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