Name each alkene. c.

Key Concepts

Alkenes

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond (C=C). They are unsaturated compounds, meaning they have fewer hydrogen atoms than alkanes, which are saturated. The presence of the double bond gives alkenes unique chemical properties, including reactivity in addition reactions.

Nomenclature of Alkenes

The nomenclature of alkenes follows the IUPAC (International Union of Pure and Applied Chemistry) rules, which involve identifying the longest carbon chain containing the double bond and numbering the chain to give the double bond the lowest possible number. The name typically ends with the suffix '-ene' to indicate the presence of the double bond.

Isomerism in Alkenes

Alkenes can exhibit geometric isomerism due to the restricted rotation around the carbon-carbon double bond. This results in cis and trans isomers, where substituents can be on the same side (cis) or opposite sides (trans) of the double bond. Understanding isomerism is crucial for naming and predicting the properties of alkenes.