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A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

(i) thiosulphate

(ii) oxalate

(iii) glycinato

(iv) ethane-1,2-diamine

Answers (1)

Option (i) is the correct answer.

Explanation: Thiosulphate or \text {S}_{2}\text {O}_{3}^{2-} is a monodentate ligand and not a chelating agent.

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