Organic Chemistry Revision - Tutorial Worksheet

This worksheet from organic chemistry contains both multiple choice and short answer questions. The questions are from the topics covering the following objectives.

• Describe a homologous series as a group of compounds with general formula, similar chemical properties and showing a gradation in physical properties as a result in increase of size and mass of the molecules, e.g. melting and boiling points; viscosity; flammability.
• Describe alkanes as a homologous series of saturated hydrocarbons with general formula CnH 2n + 2 .
• Draw the structures of branched and unbranched alkanes, C1 to C7 and name the unbranched alkanes methane to heptane.
• Describe the properties of alkanes (exemplified by methane) as being generally unreactive except in terms of burning and substitution by chlorine.
• Describe the alkenes as a homologous series of unsaturated hydrocarbons with the general formula CnH2n.
• Describe the difference between saturated and unsaturated hydrocarbons by using aqueous bromine.
• Describe the reactions of alkenes in terms of combustion and the addition reactions with bromine, steam and hydrogen.
• Define isomerism and identify isomers.
• Describe alcohols as a homologous series containing -OH group.
• Draw the structures of alcohols, C1 to C4 and name the unbranched alcohols, methanol to butanol.
• Describe the properties of alcohols in terms of combustion, oxidation to carboxylic acids and dehydration to alkenes.

Describe the formation of ethanol by the catalyzed addition of steam and by fermentation of glucose.