Which of the following compounds will show op | vedclass

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(B) Optical isomerism is shown by coordination compounds that lack a plane of symmetry and a center of symmetry.$1$. $trans-[Cr(en)_2(CN)_2]Cl$ has a

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tris(ethylenediamine)cobalt$(III)$ bromide

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(B) Optical isomerism is shown by coordination compounds that lack a plane of symmetry and a center of symmetry.$1$. $trans-[Cr(en)_2(CN)_2]Cl$ has a plane of symmetry,so it is optically inactive.$2$. $[Co(en)_3]Br_3$ is a tris-chelated complex of the type $[M(AA)_3]$. It does not possess a plane of symmetry or a center of symmetry,making it optically active.$3$. $[Co(NH_3)_5(NO_2)]I_2$ is a simple octahedral complex with high symmetry,making it optically inactive.$4$. $[Pt(NH_3)_2Cl_2]$ is a square planar complex,which is inherently achiral (optically inactive) due to the presence of a molecular plane of symmetry.

List-$I$ (Complex)	List-$II$ (Spin only magnetic moment in $B$.$M$.)
$A$. $[Cr(NH_3)_6]^{3+}$	$I$. $4.90$
$B$. $[NiCl_4]^{2-}$	$II$. $3.87$
$C$. $[CoF_6]^{3-}$	$III$. $0.0$
$D$. $[Ni(CN)_4]^{2-}$	$IV$. $2.83$

Which of the following compounds will show optical isomerism?

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