Question

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

• A. 2
• B. 3
• C. 4
• D. 5
• E. 6

Answer 1

Answer: (E)

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



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