Introduction Alkynes contain a triple bond. General formula is CnH2n-2. Two elements of unsaturation for each triple bond. Some reactions resemble the reactions of alkenes,like addition and oxidation. Some reactions are specific to alkynes. Chapter 9 2 Chapter 9 2 Introduction • Alkynes contain a triple bond. • General formula is CnH2n-2 . • Two elements of unsaturation for each triple bond. • Some reactions resemble the reactions of alkenes, like addition and oxidation. • Some reactions are specific to alkynes