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What type of structural isouters are [Co...

What type of structural isouters are `[Co(NH_3)_5Br]SO_4 and Co[(NH_3)_5SO_4]Br` ? Give a chemical test to distinguish the isomers.

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`[Co(NH_3)_5 Br] SO_4 and [Co(NH_3)_5SO_4]Br` are ionisation isomers.
Aqueous solution of `[Co (NH_3)_5 Br] SO_4` will give a white ppt. with `BaCl_2` solution. The ppt. is insoluble in conc. `HNO_3` confirming presence of free `SO_(4)^(2-)` ion. Aqueous solution of `[Co (NH_3)_5 SO_4] Br` will not give this test.
`[Co (NH_3)5 Br] SO_4 to [CO (NH_3)_5 Br]^(2+) + SQ^(2-)`
`BaCl_2 + SO_(4)^(2-) to BaSO_4 to +2CI^(-)`
white ppt
`[Co (NH_3)_5 SO_4]Br to [Co (NH_3)_5 SO_4]^(+) + Br^(-)`
`BaCl_2 + Br^(-) to " No ppt "`
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