An octahedral complex with molecular composition M.5NH 3 .Cl.SO 4 has two isomers, A and B. The solution of A gives a white precipitate with AgNO 3 solution and the solution of B gives white precipitate with BaCl 2 solution .The type of isomerism exhibited by the complex is :

Step-by-step solution

The central metal atom M is in +3 oxidation state and ionisation isomers due to exchange of ligands outside & inside the co-ordination sphere are [ M ( N H 3 ) 5 S O 4 ] [ A ] C l → A g N O 3 A g C l ( s ) ↓ w h i t e   p p t [ M ( N H 3 ) 5 C l ] [ B ] S O 4 → B a C l 2 B a S O 4 ( s ) ↓ w h i t e     p p t [A] and [B] are ionisation isomers