1.

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

Answer»

CIS-`[Cr(C_(2)O_(4))_(2)Cl_(2)]^(3-)`, TRANS-`[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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