The number of isomers possible for the octahe | vedclass

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(B) The complex $[CoCl_{2}(en)(NH_{3})_{2}]^{+}$ has the general formula $[M(AA)a_{2}b_{2}]$,where $M = Co$,$AA = en$,$a = Cl$,and $b = NH_{3}$.For th

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(B) The complex $[CoCl_{2}(en)(NH_{3})_{2}]^{+}$ has the general formula $[M(AA)a_{2}b_{2}]$,where $M = Co$,$AA = en$,$a = Cl$,and $b = NH_{3}$.For this type of complex,there are $3$ geometrical isomers possible:$1$. Trans-isomer: Both $Cl$ atoms are trans to each other,and both $NH_{3}$ molecules are trans to each other.$2$. Cis-isomer $(I)$: $Cl$ atoms are cis to each other,and $NH_{3}$ molecules are cis to each other.$3$. Cis-isomer $(II)$: $Cl$ atoms are cis to each other,and $NH_{3}$ molecules are trans to each other.Thus,a total of $3$ geometrical isomers are possible.

The number of isomers possible for the octahedral complex $[CoCl_{2}(en)(NH_{3})_{2}]^{+}$ is,

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