HC -H Propagation Step(2) H The methyl free radical collides with another chlorine molecule,producing the other product(methyl chloride)and regenerating the chlorine radical. H H-C-CI CI H 三> Chapter 4 Chapter 4 7 Propagation Step (2) The methyl free radical collides with another chlorine molecule, producing the other product (methyl chloride) and regenerating the chlorine radical. C H H H + Cl Cl C H H H Cl + Cl =>