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Which of the following complex species i...

Which of the following complex species is not expected to exhibit optical isomerism ?

A

`[Co(en)_(3)]^(3+)`

B

`[Co(en)_(2)Cl_(2)]^(+)`

C

`[Co(NH_(3))_(3)Cl_(3)]`

D

`[Co(en)(NH_(3))_(2)Cl_(2)]^(+)`.

Text Solution

Verified by Experts

The correct Answer is:
C
`[Co(NH_(3))_(3)Cl_(3)]` exists in two geometrical forms fac-and mer-isomer.

Both these forms are optically inactive. Therefore, `[Co(NH_(3))_(3)Cl_(3)]` does not show optical isomerism.
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