C5 Fractional distillation and combustion

How many types of combustion are there?

• 1

• 2

• 3

What is another name for combustion?

• Burning

• Reduction

• Displacement

Which is essential for combustion?

• Water

• Carbon dioxide

• Oxygen

What is a hydrocarbon?

• A compound that contains carbon and hydrogen

• A compound that contains carbon and hydrogen only

• A compound that has been obtained from crude oil

What is produced when a hydrocarbon fuel burns in a very good supply of oxygen?

• Carbon monoxide and water

• Carbon and water

• Carbon dioxide and water

Which type of combustion releases the most energy?

• Complete

• Incomplete

• Thermal decomposition

Crude oil is separated into simpler mixtures of hydrocarbons using what?

• Simple distillation

• Fractional distillation

• Filtration

Fractional distillation works because the hydrocarbons have different what?

• Boiling points

• Physical properties

• Melting points

In fractional distillation, the vapours condense when they reach the part of the column that is below their what?

• Meting point

• Boiling point

• Chemical properties

• Physical properties

Hydrocarbons in the gases fraction are easy to what so that they are used as fuels?

• Burn

• Ignite

• Light

• Waterproof