Types of Reactions 。Substitution: -Polar H H +KCN +KBr Br NC H H Non-polar light (h v) CH4 Cl2 CHCI HCI Types of Reactions • Substitution: – Polar – Non-polar H Br H H + KCN H NC H H + KBr CH4 + Cl2 CH3 Cl + HCl light (h )