21.2 Unsaturated Hydrocarbons

Saturated and Unsaturated

There are two classes of hydrocarbons: saturated and unsaturated. In a saturated hydrocarbon, each carbon atom is bonded to four atoms. In an unsaturated hydrocarbon, there is one or more double or triple bonds. A special case of an unsaturated hydrocarbon is benzene. Duration: 6:35.