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Structural Isomerism

Which of the ...

Question

Which of the following pairs are coordination isomers?

A

[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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B

[C o {(e n)}_{2} (H_{2} O) C l] C l_{2}

and

[C o {(e n)}_{2} C l] C l . H_{2} O

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C

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

[C r {(C N)}_{6}]

and

[C o {(C N)}_{6}]

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

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D

[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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Solution

The correct option is C $[C o {(N H_{3})}_{6}]$ $[C r {(C N)}_{6}]$ and $[C o {(C N)}_{6}]$ $[C r {(N H_{3})}_{6}]$
(A) The complexes $[C o {(N H_{3})}_{5} B r] S O_{4} a n d [C o {(N H_{3})}_{5} S O_{4}] B r$ are the ionization isomers.

(B) The complexes $[C o {(e n)}_{2} (H_{2} O) C l] C l_{2} a n d [C o {(e n)}_{2} C l] C l . H_{2} O$ are not isomers, as the number of chlorine atoms is different in them.

(C) The complexes $[C o (N H_{3})_{6}] [C r (C N)_{6}]$ and $[C o (C N)_{6}] [C r (N H_{3})_{6}]$ are coordination isomers. Here, ligands are interchanging between cationic and anionic complex ions.

(D) The complexes $[C o {(N H_{3})}_{5} (N O_{2})] C l_{2} a n d [C o {(N H_{3})}_{5} (O N O)] C l_{2}$ are the linkage isomers as the nitro group is ambidentate ligand and can coordinate through either N or O atom.

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

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

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

are a pair of _______ isomers.

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

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

are related to each other as :

Q. Name the type of isomerism exhibited by the following isomers :

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

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

Q. Which one of the following pairs of isomers and types of isomerism are correctly matched?
(i)

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

[C o (N H_{3})_{5} (O N O) C l_{2} . . . (L i n k a g e)

[C u (N H_{3})_{4}] [P t C l_{4}]

[P t (N H_{3})_{4}] [C u C l_{4}] . . . (C o o r d i n a t i o n)

[P t C l_{2} (N H_{3})_{4}] B r_{2}

[P t B r_{2} (N H_{3})_{4}] C l_{2} . . . (I o n i z a t i o n)

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