Which of the following compounds can show cis | vedclass

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(D) Cis-trans isomerism in coordination compounds requires that the ligands be arranged such that they can occupy adjacent (cis) or opposite (trans) p

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None of these

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(D) Cis-trans isomerism in coordination compounds requires that the ligands be arranged such that they can occupy adjacent (cis) or opposite (trans) positions relative to each other.For square planar complexes of the type $[M(AB)_2]$,where $AB$ is an unsymmetrical bidentate ligand like glycinate $(gly^-)$,cis and trans isomers are possible.In $[Zn(gly)_2]^0$,the geometry is tetrahedral,not square planar,so it does not show cis-trans isomerism.In $[Pd(acac)_2]^0$,the ligand $acac^-$ (acetylacetonate) is a symmetrical bidentate ligand. Complexes of the type $[M(AA)_2]$ with symmetrical bidentate ligands do not exhibit cis-trans isomerism.$[Ni(\eta^3-C_3H_5)_2]^0$ is a sandwich-type complex and does not exhibit cis-trans isomerism.Therefore,none of the given options show cis-trans isomerism.

Which of the following compounds can show cis-trans isomerism?

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