Question

An ambidentate ligand is one which is:

• A. can be linked to the central metal atom from two sides
• B. has two donor atoms but only one of them has the capacity to form a coordinate bond
• C. has two donor atoms and either of the two can form a coordinate bond
• D. forms chelate rings

Answer 1

Answer: (C)

has two donor atoms and either of the two can form a coordinate bond

Ligands, such as $NC{S}^{-}$, that can bind to a central atom through either of two or more donor atoms are termed as ambidentate.
It has two donor atoms $\left(NorS\right)$ but either of the two can form a coordinate bond.