Which of the following exhibits optical isome | vedclass

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(B) Optical isomerism is exhibited by coordination complexes that lack a plane of symmetry and a center of inversion.For octahedral complexes of the t

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$[Co(en)_2(NH_3)_2]^{3+}$

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(B) Optical isomerism is exhibited by coordination complexes that lack a plane of symmetry and a center of inversion.For octahedral complexes of the type $[M(AA)_2a_2]^{n+}$,the cis-isomer is optically active because it lacks a plane of symmetry.In the given options,$[Co(en)_2(NH_3)_2]^{3+}$ is of the type $[M(AA)_2a_2]^{n+}$,where $en$ is ethylenediamine (a bidentate ligand).The cis-form of $[Co(en)_2(NH_3)_2]^{3+}$ exists as a pair of enantiomers (non-superimposable mirror images),thus exhibiting optical isomerism.

Which of the following exhibits optical isomerism?

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