NEET levelSingle correct optionDifficulty 1 of 3hx002
Propene reacts with HBr in the presence of an organic peroxide. The major product is
A2-bromopropane
B1,2-dibromopropane
C3-bromoprop-1-ene
D1-bromopropane
Answer: D
In the presence of peroxide HBr adds by a free-radical chain (peroxide or Kharasch effect). Br adds to the terminal carbon to give the more stable secondary radical, so the product is CHX3CHX2CHX2Br, the anti-Markovnikov product.