Which of the following does not show optical isomerism? Options: A . &nbsp[Co(NH3)3Cl3] B . &nbsp[Co(en)Cl2(NH3)2]+1 C . &nbsp[Co(en)3]3+ D . &nbsp[Co(en)2Cl2]+

Which of the following does not show optical isomerism?

Question

Which of the following does not show optical isomerism?

Options:

A . [Co(NH3)3Cl3]

B . [Co(en)Cl2(NH3)2]+1

C . [Co(en)3]3+

D . [Co(en)2Cl2]+

Answer: Option A
:
A
Complexes of the type

M A_{3} B_{3}

do not show optical isomerism but they show mer-fac isomerism.

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