Reaction of Alkanes with Halogens Recall: Alkane Cl2 or Br2,heat or light replaces C-H with C- X but gives mixture of compounds Via free radical mechanism Hard to control CH4 Cl2 CH,C1+HCI Cla CH2Cl2 HCI L一CHCL3+HCI C→CCL4+HCI Reaction of Alkanes with Halogens Recall: „ Alkane + Cl 2 or Br 2, heat or light replaces C-H with C￾X but gives mixture of compounds „ Via free radical mechanism „ Hard to control