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Standard XII

Chemistry

Ionization Isomerism

The octahedra...

Question

The octahedral complex $C o S O_{4} C l .5 N H_{3}$ exists in two isomeric forms X and Y. Isomer X reacts with $A g N O_{3}$ to give a white precipitate, but does not react with $B a C l_{2}$ . Isomer Y gives white precipitate with $B a C l_{2}$ but does not react with $A g N O_{3}$ . Isomer X and Y are

ionisation isomers

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linkage isomers

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coordination isomers

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solvate isomers

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Solution

The correct option is A ionisation isomers
Since X isomers reacts with $A g N O_{3}$ to give white ppt. so the X must be $[C o (N H_{3})_{5} S O_{4}] C l$
$[C o (N H_{3})_{5} S O_{4}] C l A g N O_{3} - --- \to A g C l ↓$
(X) (white ppt)
Simillarly since Y reacts with $B a C l_{2}$ to give white ppt and at the same time it also does not react with $A g N O_{3}$ , so the white white ppt. must be for $B a S O_{4}$ and hence Y will be $[C o (N H_{3})_{5} C l] S O_{4}$ .
$[C o (N H_{3})_{5} C l] S O_{4} B a C l_{2} - -- \to B a S O_{4} ↓$ (Y) (white ppt)
[X] and [Y] are ionisation isomers.

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Similar questions

Q. The octahedral complex

C o S O_{4} C l_{5} N H_{3}

exists in two isomeric forms

X

and

Y

. Isomers

X

reacts with

A g N O_{3}

to give a white precipitate, but does not react with

B a C l_{2}

. Isomer

Y

gives white precipitate with

B a C l_{2}

but does not react with

A g N O_{3}

.
Isomers

X

and

Y

are:

$C o S O_{4} C l .5 N H_{3}$ exists in two isomeric forms 'A and 'B'. Isomer 'A' reacts with $A g N O_{3}$ to give white precipitate, but does not react with $B a C l_{2} .$ Isomer 'B' gives white precipitate with $B a C l_{2}$ but does not react with $A g N O_{3} .$ Answer the following questions.
(a) Identify \A' and 'B' and white their structural formulae
(b) Name the type of isomerism involved.
(c) Give the IUPAC name of 'A' and 'B'.

Q. A coordination compound X gives pale yellow colour with

A g N O_{3}

solution while its isomer Y gives white precipitate with

B a C l_{2}

. Two compounds are isomers of

C o B r S O_{4}

5 N H_{3}

. What could be the possible formula of X and Y?

Q. An octahedral complex with molecular composition

M .5 N H_{3} . C l . S O_{4}

has two isomers,

A

and

B

. The solution of

A

gives a white precipitate with

A g N O_{3}

solution and the solution of

B

gives white precipitate with

B a C l_{2}

solution. The type of isomerism exhibited by the complex is:

Due to the presence of ambidentate ligands coordination compounds show isomerism. Palladium complexes of the type $[P d (C_{6} H_{5})_{2} (S C N)_{2}]$ and $[P d (C_{6} H_{5})_{2} (N C S)_{2}]$ are
(a) linkage isomers
(b) coordination isomers
(c) ionisation isomers
(d) geometrical isomers

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The octahedral complex CoSO4Cl.5NH3 exists in two isomeric forms X and Y. Isomer X reacts with AgNO3 to give a white precipitate, but does not react with BaCl2. Isomer Y gives white precipitate with BaCl2 but does not react with AgNO3. Isomer X and Y are