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INTRODUCING ALKENES. This is an introductory page about alkenes such as ethene, propene and the rest. It deals with their formulae and isomerism, their physical properties, and an introduction to their chemical reactivity. What are alkenes? Formulae. Alkenes are a family of hydrocarbons (compounds containing carbon
Explains the polymerisation of alkenes and the properties of some common polymers.
This page looks at the reaction of the carbon-carbon double bond in alkenes such as ethene with potassium manganate(VII) solution (potassium permanganate solution). Alkenes react with potassium manganate(VII) solution in the cold. If the potassium manganate(VII) solution is
THE REACTION BETWEEN SYMMETRICAL ALKENES AND BROMINE. This page gives you the facts and a simple, uncluttered mechanism for the electrophilic addition reactions between bromine (and the other halogens) and alkenes like ethene and cyclohexene. If you want the mechanisms explained to you in detail,
Lab preparations of alkenes by the dehydration of alcohols.
Covers addition to symmetrical alkenes like ethene and cyclohexene. A symmetrical alkene has the same groups attached to both ends of the carbon-carbon double bond. What is electrophilic addition? . . . An explanation of the terms addition and electrophile, together with a general mechanism for these reactions.
The reaction between alkenes and concentrated sulphuric acid (including further reaction to give alcohols). Reaction with potassium manganate(VII) . . . The reaction between alkenes and potassium manganate(VII) (potassium permanganate) solution. Hydration . . . The industrial hydration of alkenes (their reaction with
Chemical properties of alkene. Alkenes are more reactive than alkanes due to the presence of a double bond. The carbon-carbon double bond consists of a strong bond and a weak p bond. The typical reactions of alkenes involve the breaking of this weaker p bond, viz., and formation of two sigma (s) bonds.
THE HALOGENATION OF ALKENES. This page looks at the reaction of the carbon-carbon double bond in alkenes such as ethene with halogens such as chlorine, bromine and iodine. This is called halogenation. Reactions where the chlorine or bromine are in solution (for example, "bromine water") are slightly more
The industrial production of alcohols by the direct hydration of alkenes.

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March 2018