Which one of the following complexes will hav | vedclass

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(A) The complex $[Co(en)(NH_3)_2Cl_2]Cl$ exhibits four isomers.It contains one bidentate ligand $(en)$ and four monodentate ligands ($2NH_3$ and $2Cl^

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$[Co(en)(NH_3)_2Cl_2]Cl$

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(A) The complex $[Co(en)(NH_3)_2Cl_2]Cl$ exhibits four isomers.It contains one bidentate ligand $(en)$ and four monodentate ligands ($2NH_3$ and $2Cl^-$).The geometric isomers are: $1$. Trans-$NH_3$ isomer.$2$. Trans-$Cl^-$ isomer.$3$. Cis-$NH_3$ and Cis-$Cl^-$ isomer,which is optically active and exists as a pair of enantiomers ($d$ and $l$ forms).Thus,the total number of isomers is $1 + 1 + 2 = 4$.

Which one of the following complexes will have four isomers?

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