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NEET2015ChemistryCoordination CompoundsActual

Amongst the following, the most stable complex is

Options

  1. A[ Fe ( H ₂ O )₆ ]³⁺
  2. B[ Fe ( NH ₃ )₆ ]³⁺
  3. C[ Fe ( C ₂ O ₄ )₃ ]³⁻
  4. D[ FeCl ₆ ]³⁻

Correct answer

C. [ Fe ( C ₂ O ₄ )₃ ]³⁻

Step-by-step solution

[ Fe ( C ₂ O ₄ )₃ ]³⁻ is the most stable complex due to chelate formation as C ₂ O ₄²⁻ is a bidentate chelating ligand.

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