1.

For the given complex [CoCl_(2)(en)(NH_(3))_(2)]^(+), the number of geometrical isomers, the number of optical isomers and total number of isomers of all type possible respectively are

Answer»

2, 2 and 4
2, 2 and 3
2, 0 and 2
0, 2 and 2

Solution :The octahedral complex of the type `[M(A A)X_(2)Y_(2)]`, i.e., `[CoCl_(2)(en)(NH_(3))_(2)]^(+)` will show two cis- and trans-geometrical isomers. Out of these, cis-isomer will be OPTICALLY active and shows two d- and l-forms. So the total number of possible isomers will be THREE.


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