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JEE Main2010ChemistryCoordination CompoundsActual

Which one of the following has an optical isomer ? (en = ethylenediamine)

Options

  1. A[ Zn ( en ) ( NH ₃ )₂ ]²⁺
  2. B[ Co ( en )₃ ]³⁺
  3. C[ Co ( H ₂ O )₄( en ) ]³⁺
  4. D[ Zn ( en )₂ ]²⁺

Correct answer

B. [ Co ( en )₃ ]³⁺

Step-by-step solution

Only option (2) is having non-super imposable mirror image & hence one optical isomer.

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