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Question
Which of the following ligands form a chelate?
Which of the following ligands form a chelate?
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Solution
The correct option is A Oxalate
In chelation, ring formation occurs because two atoms from the same ligand coordinate with the metal atom. This cannot happen if the ligand is monodentate.Oxalate is a bidentate ligand hence it forms a chelate. It can coordinate with both of its negatively charged O atoms.Acetate, cyanide and ammonia are monodentate ligands. They do not form chelates.
In chelation, ring formation occurs because two atoms from the same ligand coordinate with the metal atom. This cannot happen if the ligand is monodentate.
Oxalate is a bidentate ligand hence it forms a chelate. It can coordinate with both of its negatively charged O atoms.
Acetate, cyanide and ammonia are monodentate ligands. They do not form chelates.
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