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.
Aliphatic hydrocarbons with one double bond between carbons are called alkenes. They follow the naming convention of the alkanes except that the suffix-ene is used instead of-ane. For alkenes above propene the position of the double bond must be specified in the name.thene is the smallest of the alkene series. More commonly called ethylene, it is an important intermediate in many chemical synthesis processes. Notably, it is used in the manufacture of ethylene glycol for antifreeze.