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Standard XII
Chemistry
Polymerization Isomerism
The number of...
Question
The number of structural isomer for an alkane with a molecular weight 72 is:
A
2
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B
3
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C
4
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D
5
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Solution
The correct option is
B
3
The molecular weight of pentane (
C
5
H
12
) is 72. It has three isomers viz. n-pentane, isopentane, neopentane.
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