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Chemistry
Which one of the following alkenes does not exhibit geometric isomerism?
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Q. Which one of the following alkenes does not exhibit geometric isomerism?
Organic Chemistry – Some Basic Principles and Techniques
A
$C _{4} H _{8}$
4%
B
$C _{3} H _{6}$
85%
C
$C _{5} H _{10}$
4%
D
$C _{8} H _{16}$
6%
Solution:
The main conditions for exhibiting geometrical isomers are
(i) Presence of different groups on same double bonded carbon.
(ii) Restricted rotation
$\therefore C _{3} H _{6}\left( CH _{3}- CH = CH _{2}\right)$ does not exhibit geometric
isomerism due to presence of same group on double bonded carbon atom $\left( C _{1}\right)$.