自秋特大材 Hydrocarbons Alkane:single bonds,sp3 carbons Cycloalkane:carbons form a ring Alkene:double bond,sp2 carbons Cycloalkene:double bond in ring Alkyne:triple bond,sp carbons Aromatic:contains a benzene ring Hydrocarbons ◼Alkane: single bonds, sp3 carbons ◼Cycloalkane: carbons form a ring ◼Alkene: double bond, sp2 carbons ◼Cycloalkene: double bond in ring ◼Alkyne: triple bond, sp carbons ◼Aromatic: contains a benzene ring