What is the product when CH₃CH=CHCH₃ reacts with HBr in the presence of benzoyl peroxide?
With peroxide, HBr adds to 2-butene anti-Markovnikov, forming CH₃CH₂CH₂CH₂Br (1-bromobutane).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms