Question

${{[EDTA]}^{4-}}$ is a:

• A. monodentate ligand
• B. bidentate ligand
• C. quadridentate ligand
• D. hexadentate ligand

Answer 1

Answer: (D)

Ethylenediamine tetraacetate ion ${{(EDTA)}^{-}}$
They have six donor atoms. Polydentate ligands have flexidentate character. It is not necessary that all the donor atoms present in the polydentate ligands should form co-ordinate bonds with central metal atom or ion.