Which of the following does not show optical | vedclass

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Question

(C) To be optically active,a molecule must not possess any of the following symmetry elements:$1-$ Centre of symmetry$2-$ Plane of symmetry $(POS)$Ana

Vedclass · Accepted Answer

$[Co(NH_3)_3(NO_2)_3]$

Vedclass · Answer

(C) To be optically active,a molecule must not possess any of the following symmetry elements:$1-$ Centre of symmetry$2-$ Plane of symmetry $(POS)$Analysis of the given complexes:$A) Cis-[Cr Cl_2(C_2 O_4)_2]^{3-}$: This complex lacks a plane of symmetry and is optically active.$B) [Pt Cl_2(en)_2]^{2+}$: The $cis$-isomer of this complex lacks a plane of symmetry and is optically active.$C) [Co(NH_3)_3(NO_2)_3]$: This complex exists in $fac$ and $mer$ forms. Both forms possess a plane of symmetry,making them optically inactive.$D) [Co(en)_3]^{3+}$: This complex is a tris-chelated species and is optically active (chiral).Therefore,the complex that does not show optical isomerism is $[Co(NH_3)_3(NO_2)_3]$.

Which of the following does not show optical isomerism?

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