Edexcel Organic Chemistry revision

What is the general formula for alkanes?

• CnH2n+4

• CnH2n

• CnH2n+2

• CnH2n-2

Which type of hydrocarbons are alkanes?

• Saturated

• Halogenated

• Unsaturated

• Aromatic

What is the main reaction of alkanes when burned in a plentiful supply of air?

• Formation of methane

• Formation of hydrogen gas

• Formation of carbon dioxide and water

• Formation of carbon monoxide

What is the main reaction of alkenes when added to bromine water?

• Formation of carbon dioxide

• Formation of hydrogen gas

• Formation of water

• Formation of a bromo-alkane

What is the process called when longer chain oil fractions are broken up to produce more petrol?

• Cracking

• Hydrogenation

• Polymerization

• Fractional distillation

What is the main type of reaction that alkenes undergo?

• Oxidation

• Combustion

• Substitution

• Addition

What is the main use of alkenes produced from cracking?

• Soap production

• Fuel production

• Food flavoring production

• Plastic production

What is the functional group present in all alcohols?

• -anol

• -ene

• -anoic acid

• -ane

What is the main use of ethanol?

• Acid

• Pesticide

• Fuel

• Cleaning agent

What is the main property of plastics that makes them widely used?

• Biodegradability

• Corrosion resistance

• Moldability

• High cost