1.

Which of the following complexes can form d and l isomers ?

Answer»

`[Co(NH_(3))_(4)Cl_(3)]^(+)`
`[Co(NH_(3))_(2)Cl_(3)]`
trans-`[Co(en)_(2)Cl_(2)]`
cis-`[Co(en)_(2)Cl_(2)]^(+)`

Solution :cis FORM of `[Co(en)_(2)Cl_(2)]^(+)` SHOWS optical isomerism while trans form will not.


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