MHT CET 2026 Chemistry question
What is the major product formed when 2-bromopentane reacts with alcoholic KOH ?
Answer: (B)
Solution
Alcoholic KOH brings about dehydrohalogenation (E2 elimination). CH_3-CHBr-CH_2CH_2CH_3 \xrightarrow{alc.\ KOH} CH_3-CH=CH-CH_2CH_3 (major) + CH_2=CH-CH_2CH_2CH_3 (minor). By Saytzeff's rule, the more substituted (more
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