Give evidence that `[Co(NH_(3))_(5)Cl]SO_(4)` and `[Co(NH_(3))_(5)SO_(4)]Cl` are ionisation isomers.

Explanation

When they are dissolved in water, they will give different ions in the solution which can be tested by adding `AgNO_(3)` solution and `BaCl_(2)` solution. When `Cl^(-)` ions are the counter ions, a white precipitate will be obtained with `AgNO_(3)` solution. If `SO_(4)^(2-)` ions are the counter ions, a white precipitate will be obtained with `BaCl_(2)` solution
`[Co(NH_(3))_(5)Cl]SO_(4)(aq)+BaCl_(2)(aq)rarr underset(ppt)(BaSO_(4))(s)darr`
`[Co(NH_(3))_(5)Cl]SO_(4)(aq)+AgNO_(3)(aq)rarr` No reaction
`[Co(NH_(3))_(5)SO_(4)]Cl(aq)+BaCl_(2)(aq)rarr` No reaction
`[Co(NH_(3))_(5)SO_(4)]Cl(aq)+AgNO_(3)(aq)rarrunderset(ppt)(AgCl)(s)darr`