CHEMISTRY Lecture Notes - Alkane, Bromine, Addition Reaction
11 Mar 2023
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Alkanes & alkanes: alkanes & their reactions, alkenes & their reactions. Describe the properties of alkanes (exemplified by methane) as being generally unreactive, except in terms of burning. Describe substitution reactions of alkanes with chlorine. Describe the manufacture of alkenes and of hydrogen by cracking. From molecular structures by reaction with aqueous bromine. Describe the properties of alkenes in terms of addition reactions with bromine, hydrogen and steam. A homologous series of saturated hydrocarbon compounds with only single carbon bonds, there are no c=c bonds present. Alkanes are classified as saturated hydrocarbons as all the bonds in alkanes are single bonds. They are colorless compounds which have a gradual change in their physical properties as the number of carbon atoms in the chain increases. Alkanes are generally unreactive compounds but they do undergo combustion reactions, can be cracked into smaller molecules and react with halogens in the presence of light.
