Haloalkanes And Haloarenes Ques 3
3. How many stereoisomers does this molecule have?
$CH_3 CH=CHCH_2 CHBrCH_3$
[2008]
(a) $4$
(b) $6$
(c) $ 8$
(d) $ 2$
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Answer:
Correct Answer: 3.(a)
Solution:
- (a) In the molecule
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 $=2+2=4$
BETA
