Haloalkanes and Haloarenes · Class 12 · CBSE · Science Chemistry
Identify the major product formed when 2-bromobutane is treated with alcoholic KOH.
Practice question from Haloalkanes and Haloarenes (Class 12 · CBSE · Science Chemistry), with the correct answer and a step-by-step solution.
medium · MCQ · Q-8FB659
Identify the major product formed when 2-bromobutane is treated with alcoholic KOH.
- A.Butan-1-ol
- B.Butan-2-ol
- C.But-1-ene
- D.But-2-eneCorrect answer
Solution
Treatment of alkyl halides with alcoholic KOH undergoes -elimination (dehydrohalogenation) to form alkenes. According to Saytzeff's rule, the major product is the more substituted alkene, which is but-2-ene (specifically the trans-isomer as the major stereoisomer).
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