Question

Which ligand is capable of forming low spin as well as high spin complexes?

• A. $CO$
• B. $N{O}_2^{-}$
• C. $C{N}^{-}$
• D. $N{H}_3$

Answer 1

Answer: (D)

$N{H}_3$ can act as both weak field and strong field ligand hence forms both high spin and low spin complex.