NEET2015ChemistryCoordination CompoundsActual
In the complexes [ Fe ( H ₂ O )₆ ]³⁺, [ Fe ( CN )₆ ]³⁻ , [ Fe ( C ₂ O ₄ )₃ ]³⁻ and [ FeCl ₆ ]³⁻ , more stability is shown by
Options
- A[ FeCl ₆ ]³⁻
- B[ Fe ( C ₂ O ₄ )₃ ]³⁻
- C[ Fe ( H ₂ O )₆ ]³⁺
- D[ Fe ( CN )₆ ]³⁻
Correct answer
B. [ Fe ( C ₂ O ₄ )₃ ]³⁻
Step-by-step solution
More basic and chelate forming ligand stabilises the complex to more extent C ₂ O ₄²⁻ is a bidentate chelating ligand thus stabilises the complex [ Fe ( C ₂ O ₄ )₃ ]³⁻ to a high extent.