Of the following complex ions one exhibits optical isomersim. That one is :

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

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

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

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

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Solution

The correct option is A $C i s - [C o (e n)_{2} C l_{2}]^{+}$
$C i s - [C o (e n)_{2} C l_{2}]^{+}$ is optically active. $T r a n s - [C o (e n)_{2} C l_{2}]^{+}$ is symmetric and hence it is optically inactive.

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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}]^{+}

II. trans

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

III. cis

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

IV.

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

Identify the optically active compounds from the following
(a) $[C o (e n)_{3}]^{3 +}$
(b) $t r a n s - [C o (e n)_{2} C l_{2}]^{+}$
(c) $c i s - [C o (e n)_{2} C l_{2}]^{+}$
(d) $[C r (N H_{3})_{5} C l]$

c i s [C o (e n)_{2} C l_{2}]^{+}

can have

d

and

l

optical isomers.

The necessary and sufficient condition to exhibit optical activity, the configuration of the given complex should be assymmetric.

The complex which does not exhibit cis

-

trans isomerism but optically active

Q. Assertion :

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

can exist in cis-and trans-forms but neither can display optical activity. Reason: Each of these possesses at least one plane of symmetry.

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Of the following complex ions one exhibits optical isomersim. That one is :

The correct option is A Cis−[Co(en)2Cl2]+Cis−[Co(en)2Cl2]+ is optically active. Trans−[Co(en)2Cl2]+ is symmetric and hence it is optically inactive.

The correct option is A $C i s - [C o (e n)_{2} C l_{2}]^{+}$
$C i s - [C o (e n)_{2} C l_{2}]^{+}$ is optically active. $T r a n s - [C o (e n)_{2} C l_{2}]^{+}$ is symmetric and hence it is optically inactive.