The species that can have a trans-isomer is: | vedclass

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(B) For a complex to exhibit $cis-trans$ isomerism,it must have at least two identical ligands in different spatial arrangements.$A$. $[Pt(en)Cl_2]$ i

Vedclass · Accepted Answer

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

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(B) For a complex to exhibit $cis-trans$ isomerism,it must have at least two identical ligands in different spatial arrangements.$A$. $[Pt(en)Cl_2]$ is a square planar complex of the type $[M(AA)X_2]$. It shows $cis-trans$ isomerism.$B$. $[Pt(en)_2Cl_2]^{2+}$ is an octahedral complex of the type $[M(AA)_2X_2]$. It shows $cis-trans$ isomerism.$C$. $[Cr(en)_2(ox)]^+$ is an octahedral complex of the type $[M(AA)_3]$. It does not show $cis-trans$ isomerism.$D$. $[Zn(en)Cl_2]$ is a tetrahedral complex. Tetrahedral complexes do not show geometric isomerism.However,in the context of standard chemistry problems,$[Pt(en)_2Cl_2]^{2+}$ is the classic example of an octahedral complex exhibiting $trans$-isomerism as shown in the provided image.

The species that can have a $trans$-isomer is: ($en = \text{ethane-}1,2\text{-diamine}$,$ox = \text{oxalate}$)

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