An octahedral complex having molecular composition has two isomers A and B. The solution of A gives a white precipitate with solution and the solution of B gives white precipitate with solution.

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Question

An octahedral complex having molecular composition  has two isomers A and B. The solution of A gives a white precipitate with  solution and the solution of B gives white precipitate with  solution.

The type of isomerism exhibited by the complex is,

Canvas Classes · Accepted Answer

Strategy:
 Analyze the precipitation reactions to determine the structure of the coordination sphere for each isomer.

Step 1: Analyze Isomer A
Isomer A forms a white precipitate with . The specific ion that precipitates with  is  to form insoluble .
This indicates that the chloride ion is freely floating outside the relatively inert coordination sphere acting as the counter-ion.
Formula of A: .

Step 2: Analyze Isomer B
Isomer B forms a white precipitate with . The specific ion that precipitate

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