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BITSAT2024ChemistryCoordination CompoundsActual

The complex with highest magnitude of crystal field splitting energy ( ₀ ) is

Options

  1. A[ Cr ( OH ₂ )₆ ]³⁺
  2. B[ Ti ( OH ₂ )₆ ]³⁺
  3. C[ Fe ( OH ₂ )₆ ]³⁺
  4. D[ Mn ( OH ₂ )₆ ]³⁺

Correct answer

A. [ Cr ( OH ₂ )₆ ]³⁺

Step-by-step solution

smaller cations prefer coordinate bonding due to greater polarizing power. Ti ⁺³=67 pm radius, Cr ³⁺=62 pm radius Mn ⁺³=65 pm radius, Fe ⁺³=65 pm radius So, Cr ³⁺ has highest tendency to attract ligand.

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