Which of the following is not an ambidentate ligand?
- C2O42-
- SCN-
- NO2-
- CN-
Answer
(1) C2O42-
Solution
An ambidentate ligand can bind through either of two different donor atoms: SCN- (S or N), NO2- (N or O), CN- (C or N).
C2O42- binds through both O atoms at the same time; it is a didentate (chelating) ligand, not ambidentate.
Answer: (1)