Identify the optically active compounds from the following

Options

A. `[Co(en)_(3)]^(3+)`
B. trans`- [Co(en)_(2) Cl_(2)]^(+)`
C. cis`- [Co(en)_(2)Cl_(2)]^(+)`
D. `[Cr(NH_(3))_(5)Cl]`

Answer

A, C

Explanation

`[Co(en)_(3)]^(3+)` and cis - `[Co(en)_(2)Cl_(2)]^(+)` are optically active compounds because their mirror images are non-superimposable isomer.

Hence, (a) and (c) are correct choices.