1.

Which one of the following complexes will have four isomers ?

Answer»

`[CO(en)(NH_(3))_(2)Cl_(2)]Cl`<BR>`[Co(PPh_(3))_(2)(NH_(3))_(2)Cl_(2)]Cl`
`[Co(en)_(3)]Cl_(3)`
`[Co(en)_(2)Cl_(2)]Br`

Solution :The four isomers of `[Co(en)_(2)Cl_(2)]Br` are trans ISOMER, CIS`-` isomer `(d-` and `l-` isomers ) and ionization isomer `[Co(en)BrCl]Cl`.


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