Which of the following complex species is not expected to exhibit optical isomerism?
A
[Co(en)3]3+
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B
[Co(en)2Cl2]+
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C
[Co(NH3)3Cl3]
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D
[Co(en)(NH3)2Cl2]+
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Solution
The correct option is C[Co(NH3)3Cl3] [Co(NH3)3Cl3] exists in the geometrical forms fac and mer isomer. Both these forms are optically inactive. Therefore, [Co(NH3)3Cl3]does not show optical isomerism.