Chambers's Twentieth Century Dictionary. 1  n Maxim maksâ²im a general principle, serving as a rule or guide: a pithy saying: a proverb.  n Maxim maksâ²im often put for Maxâ²im-gun, an automatic machine-gun capable of firing as many as 620 rounds per minute, and of accurate shooting up to 3000 yards.
THE HYDROGENATION OF ALKENES. This page looks at the reaction of the carbon-carbon double bond in alkenes with hydrogen in the presence of a metal catalyst. This is called hydrogenation. It includes the manufacture of margarine from animal or vegetable fats and oils. Hydrogenation in the lab. The hydrogenation of ethene.
Olefin, also called alkene, compound made up of hydrogen and carbon that contains one or more pairs of carbon atoms linked by a double bond. Olefins are examples of unsaturated hydrocarbons (compounds that contain only hydrogen and carbon and at least one double or triple bond).