Which of the following is a bidentate ligand ?
(i) Acetylacetonate (ii) Glycinato
(iii) Oxalato (iv) Carbanato

Options

A. (i), (ii), (iii), (iv)
B. (ii), (iii), (iv)
C. (i), (iii), (iv)
D. (i), (ii), (iii)

Answer

A

Explanation

When a ligand can bind to a central metal atom/ion through two donor atoms, the ligand is said to be didentate or bidentate.

Each of these is a bidentate ligand (''two toothed'' ligand) as each of these ligands bonds to a metal atom/ion through two atoms of the ligand.