Question

15. A solution of (CO(NH3)4Cl2]SO4, when treated with BaCl2 gives a white precipitate.
What should be the formula of isomer of the dissolved complex that gives white
precipitate with AgNO3. What are the above isomers called?​

Answer 1

Explanation:

Co(NH

3

)

5

SO

4

]Br will dissociate to give bromide ions. On reaction with silver nitrate, pale yellow precipitate of silver bromide will be obtained.

[Co(NH

3

)

5

SO

4

]Br→[Co(NH

3

)

5

SO

4

]

+

+Br

−

[Co(NH

3

)

5

Br]SO

4

will dissociate to give sulphate ions. On reaction with barium chloride, a white precipitate of barium sulphate will be obtained.

[Co(NH

3

)

5

Br]SO

4

→[Co(NH

3

)

5

Br]

2+

+SO

4

2−