The number of possible isomers of an octahedr | vedclass

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(C) The complex $[Co(C_2O_4)_2(NH_3)_2]^-$ is of the type $[M(AA)_2a_2]$,where $AA$ is a bidentate ligand (oxalate) and $a$ is a monodentate ligand (a

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$3$

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(C) The complex $[Co(C_2O_4)_2(NH_3)_2]^-$ is of the type $[M(AA)_2a_2]$,where $AA$ is a bidentate ligand (oxalate) and $a$ is a monodentate ligand (ammonia).This complex exhibits geometrical isomerism,having two forms: $cis-$ and $trans-$.The $cis-$ isomer is optically active and exists as a pair of enantiomers ($d$ and $l$ forms).The $trans-$ isomer is optically inactive (achiral) due to the presence of a plane of symmetry.Therefore,the total number of isomers is $3$ ($cis-d$,$cis-l$,and $trans-$).

The number of possible isomers of an octahedral complex $[Co(C_2O_4)_2(NH_3)_2]^-$ is

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