Home Chemistry Co-ordinatios Compounds JEE Main 2025 An octahedral complex having molecular compo…
Chemistry Co-ordinatios Compounds JEE Main 2025 Single Correct MCQ
Published on: August 13, 2026

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,

A
Co-ordinate isomerism
B
Ionization isomerism
C
Geometrical isomerism
D
Linkage isomerism

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The correct answer is:
B

In this octahedral complex with the molecular composition , two isomers, A and B, are present.

Isomer A is represented as . When this isomer is dissolved in solution, it reacts with , forming a white precipitate of silver chloride (AgCl).

Isomer B is written as . In solution, it reacts with , forming a white precipitate of barium sulfate .

These two isomers demonstrate ionization isomerism. This type of isomerism occurs when the exchange of ions inside and outside the coordination sphere of a complex leads to the formation of isomers with different chemical behaviors in solution.

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