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NEET2009ChemistryCoordination CompoundsActual

Which of the following does not show optical isomerism - (en = Ethylenediamine)

Options

  1. A[ Co ( en )₃ ]³⁺
  2. B[ Co ( en )₂ Cl ₂ ]⁺
  3. C[ Co ( NH ₃ )₃ Cl ₃ ]⁻
  4. D[ Co ( en ) Cl ₂ ( NH ₃ )₂ ]⁺

Correct answer

C. [ Co ( NH ₃ )₃ Cl ₃ ]⁻

Step-by-step solution

As complexes of the type [ MA ₃ ~B ₃ ] can show geometrical isomerism knows as facmer isomerism and not optical isomerism. So here [ Co ( NH ₃ )₃ Cl ₃ ]^0 can not show optical isomerism.

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