Question:

Which from following complexes is having ambidentate ligand in it?

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Ambidentate examples: $\text{SCN}^-$, $\text{NO}_2^-$
Updated On: May 8, 2026
  • Sodium hexafluoroaluminate(III)
  • Pentaaquaisothiocyanatoiron(III) ion
  • Hexacyanoferrate(II) ion
  • Trioxalatocobaltate(III) ion
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The Correct Option is B

Solution and Explanation


Concept: Ambidentate ligands can coordinate through two different atoms.
• Example: $\text{SCN}^-$ can bind through S or N.

Step 1:
Identify ligands.
• (A) $\text{F}^-$: Monodentate
• (B) $\text{SCN}^-$: Ambidentate (correct)
• (C) $\text{CN}^-$: Monodentate
• (D) Oxalate: Bidentate but not ambidentate

Step 2:
Conclusion.
Thus, isothiocyanato complex contains ambidentate ligand. Final Answer: Option (B)
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