Among the following complexes, the one that can exhibit optical activity is:

[C o C l_{6}]^{3 -}

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[C o (e n) C l_{4}]^{-}

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c i s - [C o (e n)_{2} C l_{2}]^{3 +}

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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 C $c i s - [C o (e n)_{2} C l_{2}]^{3 +}$

These have plane of symmetry so are optically inative.
Only cis isomer shows optical activity.

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Similar questions

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) $[C r (N H_{3})_{5} C l]$

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 +}

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. Among the following complexes

[{Ru(bipyridyl)}_{3})]^{2 +}, [C r (E D T A)]^{2 +}, trans- [C r C l_{2} (o x)_{2}]^{3 -}

and

cis- [C r C l_{2} (o x)_{2}]^{3 -}

, the total number of complexes that shows chirality are:

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Among the following complexes, the one that can exhibit optical activity is:

The correct option is C cis−[Co(en)2Cl2]3+ These have plane of symmetry so are optically inative. Only cis isomer shows optical activity.

The correct option is C $c i s - [C o (e n)_{2} C l_{2}]^{3 +}$

These have plane of symmetry so are optically inative.
Only cis isomer shows optical activity.