Mechanism of the reaction of alkanes with halogens

HideShow resource information

Mechanism of the reaction of alkanes with halogens

  • A reaction mechanism is a description of the key events on the pathway that leads reactants to come together and react to produce the products
  • When alkanes react with halogens, the mechanism is called radical substitution
  • A radical is an atom or group of atoms which has an unpaired electron

E.g the reaction of methane with chlorine

1. Initiation

  • This is the event thats starts the reaction
  • It is brought about by UV light, which provides the energy needed to break a chlorine molecule apart to produce Cl radicals

Cl-Cl(g) -> Cl (radical)(g) + Cl (radical)(g)

  • This bond breaking is an example of homolytic fission
  • Homolytis fission is a process in which a covalent bond breaks, so that one of the electrons…


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Reactions resources »