Which of the following molecules or ions may act as a bidentate ligand ?

Options

A. `CO_3^(2-)`
B. `NO_3^-`
C. `CH_3C-=N`
D. `C_2O_4^(2-)`

Answer

A,B,D

Explanation

`CO_3^(2-)` and `NO_3^(-)` are flexidentate ligands having 1 or 2 donor oxygen atoms
`C_2O_4^(2-)-2` donor oxygen atoms.
`CH_3C=N-1` donor nitrogen atom.