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JEE Main2008ChemistryCoordination CompoundsActual

In which of the following octahedral complexes of Co (at. no. 27), will the magnitude of _ be the highest?

Options

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

Correct answer

A. [ Co ( CN )₆ ]³⁻

Step-by-step solution

CN ^ is stronger ligand hence _ is highest.

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