1.

Which of the following complex(s) can not exhibit both geometrical and optical isomerism?

Answer»

`[RU(EN)_(3)]^(3+)`
`[Co(H_(2)O)Cl_(3)]`
`[PtBrCl(H_(2)O)NH_(3)]`
`[FeBr_(2)(en)_(2)]^(+)`

Answer :B


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