"alkene." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/alkene>.
alkene. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/alkene
Any of a group of unsaturated hydrocarbons that have carbon atoms in chains linked by one or more double bonds and that have the general formula CnH2n. Lighter alkenes, such as ethylene, are derived from petroleum by cracking. Also called olefin