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(D) For a complex to exhibit both geometric and optical isomerism,it must be able to form cis and trans isomers,and the cis isomer must be chiral (non

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$[Pt(en)_2Cl_2]^{2+}$

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(D) For a complex to exhibit both geometric and optical isomerism,it must be able to form cis and trans isomers,and the cis isomer must be chiral (non-superimposable on its mirror image).$1$. $[Pt(NH_3)_2Cl_2]$ is a square planar complex,which shows geometric isomerism but not optical isomerism.$2$. $[Pt(en)_2Cl_2]^{2+}$ is an octahedral complex of the type $[M(AA)_2a_2]$.$3$. The cis-isomer of $[Pt(en)_2Cl_2]^{2+}$ lacks a plane of symmetry and is optically active,while the trans-isomer is optically inactive.$4$. Therefore,$[Pt(en)_2Cl_2]^{2+}$ exhibits both geometric and optical isomerism.

Which of the following complexes exhibits both geometric and optical isomerism?

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