8-2 Halogenation of Alkenes Halogenation -Addition reaction of alkenes Addition of Br,and Cl,to alkenes to yield 1,2-dihalides CI CI + Cl2 H一C一C一H H H Ethylene 1,2-Dichloroethane (ethylene dichloride)Halogenation ▪ Addition reaction of alkenes ▪ Addition of Br2 and Cl2 to alkenes to yield 1,2-dihalides 8-2 Halogenation of Alkenes