Question:

Which of the following complexes show linkage isomerism?

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Linkage isomerism is common with ligands like nitrito (ONO), thiocyanate (SCN), and others, which can coordinate via different atoms.
Updated On: Jun 25, 2025
  • [Co(NH\(_3\))\(_5\)Cl]\(^{2+}\) \hspace{1.6cm}
  • [Co(NH\(_3\))\(_4\)Cl\(_2\)]Br\(_2\)
  • [Co(H\(_2\)O)\(_6\)]\(^{3+}\) \hspace{2cm}
  • [Co(NH\(_3\))\(_5\)(ONO)]\(^{2+}\)
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The Correct Option is D

Solution and Explanation

Linkage isomerism occurs when a ligand can bind to a metal atom in more than one way, forming different isomers. In complex (D), the nitrito ligand (ONO) can bind through either the nitrogen or the oxygen atom, resulting in linkage isomerism. The other complexes do not exhibit this type of isomerism.
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