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NEET levelSingle correct optionDifficulty 1 of 3o2002

Propene reacts with HBr in the presence of benzoyl peroxide. The major product is

  1. A3-bromopropene
  2. Bpropan-2-ol
  3. C2-bromopropane
  4. D1-bromopropane

Answer: D

Peroxide starts a radical chain. adds to the terminal carbon to give the more stable secondary radical, which abstracts H from HBr. The major product is 1-bromopropane (anti-Markovnikov).
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