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The CFSE for [ C o C l 6 ] 4 - complex is 18000 c m - 1 . The Δ for [ C o C l 4 ] 2 - will be

Options

  1. A9000 c m - 1
  2. B4000 c m - 1
  3. C8000 c m - 1
  4. D2000 c m - 1

Correct answer

C. 8000 c m - 1

Step-by-step solution

The relation of CFSE for tetrahedral and octahedral complex is given as Δ t = 4 9 Δ 0 So Δ t for [ C o C l 4 ] 2 - = 4 9 × 18000 c m - 1 = 8000 c m - 1 .

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