The document discusses 5 types of organic reactions: addition reactions, substitution reactions, elimination reactions, condensation reactions, and oxidation reactions. It focuses on addition reactions, which involve a double bond becoming a single bond by the addition of two groups of atoms. It provides examples of different types of addition reactions, including halogenation, hydrogenation, hydrohalogenation, and hydration reactions. It also discusses the Markovnikov rule for determining product structure in hydrohalogenation reactions.
