Haloalkanes and Haloarenes - Result Question 11
####11. How many stereoisomers does this molecule have?
[2008]
$CH_3 CH=CHCH_2 CHBrCH_3$
(a) 4
(b) 6
(c) 8
(d) 2
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Solution:
- (a) In the molecule
CC=CCC(C)Br
the number of stereoisomers is given by sum of geometrical isomers (because of presence of $C=C$ ) and optical isomers (because of presence of chiral carbon atom).
Number of geometrical isomers $=2$ (one $C=C$ is present).
Number of optical isomers $=2$ (one chiral carbon atom).
Total number of stereoisomers $=2+2=4$
