MHT CET 2024 Chemistry question

What is the number of moles of donor atoms present in one mole oxalate ion ?

(A)1
(B)2Correct
(C)6
(D)4

Answer: (B)

Solution

The oxalate ion is a bidentate ligand: it binds the metal through one oxygen atom of each of its two carboxylate () groups, forming a five-membered chelate ring. So one oxalate ion has 2 donor atoms, and one mole of oxalate ion has 2 moles of donor atoms, option (B). Option (A)

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Question ID VK-099655