Q.

Ethylene diaminetetraacetate ion is a/an              [2024]

1 hexadentate ligand  
2 ambidentate ligand  
3 monodentate ligand  
4 bidentate ligand  

Ans.

(1)

Ethylene diamine tetraacetate ion (EDTA4-) is an important hexadentate ligand. It can bind through two nitrogen and four oxygen atoms to a central metal ion.