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Structural Isomerism

Which of the ...

Question

Which of the following does not have optical isomer?

A

[C o {(e n)}_{3}] C l_{3}

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B

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

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C

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

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D

[C o (e n) {(N H_{3})}_{2} C l_{2}] C l

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Solution

The correct option is A $[C o {(N H_{3})}_{3} C l_{3}]$
$[C o {(e n)}_{3}] C l_{3}, c i s - [C o {(e n)}_{2} C l_{2}] C l$ and $[C o (e n) {(N H_{3})}_{2} C l_{2}] C l$ shows optical isomerism.
The compound $[C o {(N H_{3})}_{3} C l_{3}]$ contains elements of symmetry and is optically inacitve.

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Similar questions

Q. Which of the following compounds show optical isomerism?
I. cis

- [C o (N H_{3})_{4} C l_{2}]^{+}

- [C o (e n)_{2} C l_{2}]^{+}

- [C o (e n)_{2} C l_{2}]^{+}

[C o (e n)_{3}]^{3 +}

Q. Complex compound(s) of which optical activity does not depend upon the orientation of the ligands around metal cation.
(i)

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

[C o (e n)_{3}] C l_{3}

[C o (C_{2} O_{4})_{2} (N H_{3})_{2}]^{-}

Q. Complex compound(s) which is optical active and does not depend upon the orientation of the ligands around metal cation:
(i)

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

[C o (e n)_{3}] C l_{3}

[C o (C_{2} O_{4})_{2} (N H_{3})_{2}]^{-}

[C r C l_{2} (N H_{3})_{2} (e n)]^{+}

.

Q. Which of the following does not have optical isomers ?

Arrange the following complexes in the increasing order of conductivity of their solution

$[C o (N H_{3})_{3} C l_{3}], [C o (N H_{3})_{4} C l_{2}] C l, [C o (N H_{3})_{6}] C l_{3}, [C o (N H_{3})_{5} C l] C l_{2}$

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