AQA C7 Hydrocarbons

What are hydrocarbons composed of?

• Carbon and oxygen

• Carbon and hydrogen

• Hydrogen and nitrogen

• Oxygen and nitrogen

What type of bonds do alkanes have?

• Double bonds

• Triple bonds

• Single bonds

• Ionic bonds

Which of the following is a homologous series?

• Alkanes

• Esters

• Alcohols

• Ketones

What is the general formula for alkanes?

• C_nH_2n+4

• C_nH_2n+2

• C_nH_2n

Which of the following is the simplest alkane?

• Ethane

• Propane

• Methane

• Butane

What happens to the viscosity of hydrocarbons as the carbon chain gets shorter?

• It increases

• It decreases

• It remains the same

• It fluctuates

What is produced during the complete combustion of hydrocarbons?

• Carbon monoxide and water

• Carbon dioxide and water

• Carbon dioxide and hydrogen

• Carbon monoxide and hydrogen

What is required for the complete combustion of hydrocarbons?

• Nitrogen

• Oxygen

• Hydrogen

• Helium

What is the effect of shorter carbon chains on the boiling points of hydrocarbons?

• Higher boiling points

• Lower boiling points

• No change in boiling points

• Variable boiling points

What is the term for the gain of oxygen in a chemical reaction?

• Reduction

• Oxidation

• Combustion

• Neutralization