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  4. How many monochloro structural isomers are expected in free radical monochlorination of 2-methylbutane?

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Q. How many monochloro structural isomers are expected in free radical monochlorination of $2$-methylbutane?

KEAMKEAM 2014Hydrocarbons

Solution:

Number of mono chloro isomers depends upon the types of hydrogen atoms present in the substrate alkane. The structure of $2$-methylbutane is

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Because of the presence of four types of hydrogens, it gives four $+$ two $(d$ and $l$ forms $)=$ six monochloro products on monochlorination as

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