NEET 2026 Chemistry question

Which one of the following is an ambidentate ligand?

(1)Ethane-1,2-diamine
(2)Ethylenediaminetetraacetate ion
(3)ThiocyanateCorrect
(4)Oxalate

Answer: (3)

Solution

An ambidentate ligand has two different donor atoms but binds through only one of them at a time. Thiocyanate () can bind through S (thiocyanato-S) or N (isothiocyanato-N), so

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Question ID VK-104869