👉 Olefin is a type of functional group consisting of two or more carbon atoms bonded to each other in linear or branched forms. It is one of the three main functional groups, along with carboxylic acid and amine. Olfines are the most common type of olefins and include ethyne (C2H6), propyne (C3H8), butyne (C4H10), and pentyne (C5H12).
