Which one of the following is an example of coordination isomerism?

[C o (N H_{3})_{5} B r] S O_{4}

and

[C o (N H_{3})_{5} S O_{4}] B r

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[C o (N H_{3})_{5} N O_{2}] C l_{2}

and

[C o (N H_{3})_{5} O N O] C l_{2}

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[C r (H_{2} O)_{6}] C l_{3}

and

[C r (H_{2} O)_{5} C l] C l_{2} \cdot H_{2} O

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[C r (N H_{3})_{6}] [C o (C N)_{6}]

and

[C o (N H_{3})_{6}] [C r (C N)_{6}]

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Solution

The correct option is D $[C r (N H_{3})_{6}] [C o (C N)_{6}]$ and $[C o (N H_{3})_{6}] [C r (C N)_{6}]$
Option (D) is correct.
$[C r (N H_{3})_{6}] [C o (C N)_{6}]$ and $[C o (N H_{3})_{6}] [C r (C N)_{6}]$ is an example of coordination isomerism. In this complex $C r$ and $C o$ interchange their position.
Coordination isomerism is a form of structural isomerism in which the composition of the complex ions varies. In a coordination isomer, the total ratio of ligand to metal remains the same, but the ligands attached to a specific metal ion change.

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Similar questions

Match the correct pairs of isomers with their examples.

A)Ionisation (a) $P t (N H_{3})_{2} C l_{2}] [P t (N H_{3})_{4}]$

$[P t C l_{4}]$

B) Linkage (b) $[C r (N H_{3})_{6}] [C o (C N)_{6}]$ & $[C o (N H_{3})_{6} [C r (C N)_{6}]$

C)Coordination (c) $[C o (N H_{3})_{5} (N O_{2})] C l_{2}$ & $[C o (N H_{3})_{5} (O N O)] C l_{2}$

D)Polymerisation (d) $[C o (S O_{4}) (N H_{3})_{5}] B r$ & $[C o (B r (N H_{3})_{5}] S O_{4}$

Q. What kind of isomerism exists between

[C r (H_{2} O)_{6}] C l_{3}

(violet) and

[C r (H_{2} O)_{5} C l] C l_{2} . H_{2} O

(greyish-green)?

What kind of isomerism exists between $[C r (H_{2} O)_{6}] C l_{3} (v i o l e t)$ and $[C r (H_{2} O)_{5} C l] C l_{2} . H_{2} O (g r e y i s h - g r e e n)$ ?
(a) Linkage isomerism
(b) Solvate isomerism
(c) Ionisation isomerism
(d) Coordination isomerism

Q. The complexes

[C o (N H_{3})_{6}] [C r (C N)_{6}] a n d [C r (N H_{3})_{6}] [C o (C N)_{6}]

are the examples of which type of isomerism?

Q. The complexes

[C o {(N H_{3})}_{6}] [C r {(C N)}_{6}],

and

[C r {(N H_{3})}_{6}] [C o {(C N)}_{6}]

are the examples of which type of isomerism?

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