Which of the following complex species is not expected to exhibit optical isomerism ?A. `[Co (en)_(3)]^(3+)`B. `[Co(en)_(2)Cl_(2)]^(+)`C. `[Co(NH_(3))_(3)CL_(3)]`D. `[Co(en)(NH_(3))Cl_(2)]^(+)`

Which of the following complex species is not expected to exhibit opti

1.	Which of the following complex species is not expected to exhibit optical isomerism ?A. `[Co (en)_(3)]^(3+)`B. `[Co(en)_(2)Cl_(2)]^(+)`C. `[Co(NH_(3))_(3)CL_(3)]`D. `[Co(en)(NH_(3))Cl_(2)]^(+)`
Answer» Correct Answer - C Optical isomerism is exhibited by only those complexes which lacks elements of symmetry `[Co(NH_(3))_(3)CL_(3)]` shows facial as well as meridional isomerism But both the forms contain plane of symmetry thus , this complex does not exhibit optical isomerism

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Which of the following complex species is not expected to exhibit optical isomerism ?A. `[Co (en)_(3)]^(3+)`B. `[Co(en)_(2)Cl_(2)]^(+)`C. `[Co(NH_(3))_(3)CL_(3)]`D. `[Co(en)(NH_(3))Cl_(2)]^(+)`

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