Question

Which of the following is an ambidentate ligand ?

• A. $S{O}_3^{2-}$
• B. $C{N}^{-}$
• C. $N{H}_3$
• D. $H_{2}O$

Answer 1

The correct option is B $C{N}^{-}$

A monodentate ligand which can bond through different atoms to form different coordination compounds is called ambidentate ligand.
Only $C{N}^{-}$ is an ambidentate ligand from the above options.

$M\leftarrow \overline{C}N$ $M\leftarrow :N{C}^{-}$
Cyano Isocyano