ORGANIC CHEMISTRY Chapter 13 o a hydrocarbon whose molecules contain two double bonds is called an alkadiene( alkatriene for three double bonds) g a hydrocarbon with two triple bonds is called an alkadiyne o a hydrocarbon with a double and triple bond is called an alkenyne An alkadiene An alkatriene HC≡C-CH2-C≡CH HC≡C-CH2-CH=CH An alkadiyne An alkenyne Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 A hydrocarbon whose molecules contain two double bonds is called an alkadiene(alkatriene for three double bonds); A hydrocarbon with two triple bonds is called an alkadiyne; A hydrocarbon with a double and triple bond is called an alkenyne. HC C CH2 C CH HC C CH2 CH CH2 An alkadiene An alkatriene An alkadiyne An alkenyne