Co-Ordination Compounds Question 101
Question: $ C{N^{-}} $ is a strong field ligand. This is due to the fact that
[CBSE PMT 2004]
Options:
A) It can accept electron from metal species
B) It forms high spin complexes with metal species
C) It carries negative charge.
D) It is a pseudohalide
Show Answer
Answer:
Correct Answer: D
Solution:
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).