Which of the following complexes does not exh | vedclass

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(A) Optical isomerism is exhibited by complexes that lack a plane of symmetry or center of inversion (chiral complexes).$1$. $[Co(NH_3)_3 Cl_3]$ exist

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$[Co(NH_3)_3 Cl_3]$

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(A) Optical isomerism is exhibited by complexes that lack a plane of symmetry or center of inversion (chiral complexes).$1$. $[Co(NH_3)_3 Cl_3]$ exists as facial $(fac)$ and meridional $(mer)$ isomers,both of which have planes of symmetry,so it is optically inactive.$2$. $[Co(en)_3]Cl_3$ is a tris-chelated complex and is chiral.$3$. $[Co(en)_2 Cl_2]Cl$ has a cis-isomer that is chiral (optically active).$4$. $[Co(en)(NH_3)_2Cl_2]Cl$ has geometric isomers,and the cis-form is chiral.Therefore,$[Co(NH_3)_3 Cl_3]$ does not exhibit optical isomerism.

Which of the following complexes does not exhibit optical isomerism?

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