1.

Which one of the following complex ions has geometrical isomers ?

Answer»

`[Co(en)_(3)]^(3+)`
`Ni(NH_(3))_(5)Br]^(+)`
`[Co(NH_(3))_(2)(en)_(2)]^(3+)`
`[Cr(NH_(3))_(4)(en)]^(3+)`

Solution :Geometrical isomerism is SHOWN by disubstituted OCTAHEDRAL COMPLEXES such as `[Co(NH_(3))_(2)(en)_(2)]^(3+)`


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