1.

In which of the following pairs both the complexes show optical isomerism -

Answer»

`cis - [CR(C_(2)O_(4))_(2)Cl_(2)]^(3-) , cis - [CO(NH_(3))_(4)Cl_(2)]`<BR>`[Co(en)_(3)]Cl_(3), cis-[Co(en)_(2)Cl_(2)]CL`
`[PtCl" (dien)"]Cl, [NiCl_(2)Br_(2)]^(2-)`
`[Co(NO_(3))_(3)(NH_(3))_(3)], cis - [Pt (en)_(2)Cl_(2)]`

Answer :B


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