Unsaturated hydrocarbons are organic compounds that contain one or more double or triple bonds between their carbon atoms. These hydrocarbons can be divided into two categories: alkenes and alkynes.
Alkenes: Alkenes are hydrocarbons that contain at least one double bond between two carbon atoms. These hydrocarbons are named using the prefix “ene” and the number of carbon atoms in the molecule. For example, ethene is an alkene with two carbon atoms and propene is an alkene with three carbon atoms.
Alkynes: Alkynes are hydrocarbons that contain at least one triple bond between two carbon atoms. These hydrocarbons are named using the prefix “yne” and the number of carbon atoms in the molecule. For example, ethyne is an alkyne with two carbon atoms and propyne is an alkyne with three carbon atoms.