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MHT CET Medical202621 April 2026Evening ShiftChemistryCoordination CompoundsActual

What type of ligand the oxalate ion is?

Options

  1. AMonodentate
  2. BBidentate
  3. CHexadentate
  4. DAmbidentate

Correct answer

B. Bidentate

Step-by-step solution

The oxalate ion is C₂O₄²⁻ . It contains two donor oxygen atoms which can simultaneously coordinate to a central metal atom or ion. Since it has two donor sites, it acts as a bidentate ligand. Answer: Bidentate

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