Name the two elements found in hydrocarbons

• carbon and oxygen

• oxygen and hydrogen

• carbon and hydrogen

Crude oil is forming extremely slowly. Does this make it a finite resource or a non-renewable one?

• finite

• non-renewable

Petrol comes from crude oil. Give one use for petrol.

• Fuel

• Waterproof roads

• Waterproof houses

• Oils, waxes, and polishes

Name the main hydrocarbon found in natural gas

• methane

• ethane

• carbon dioxide

Fractions with a high viscosity have longer/shorter chain lengths?

• shorter

• longer

Bitumen has the highest boiling point and leaves at the bottom as a hot liquid, true or false?

• true

• false

Petrol and fuel oil are different fractions separated from crude oil. Describe the difference in one physical property between these two fractions.

• Petrol has longer hydrocarbon chains

• Fuel oil has shorter hydrocarbon chains

• Petrol has a higher boiling point

• Petrol has a lower boiling point

The hydrocarbons that leave the top of the fractioning column are

• solids

• liquids

• gases

Where do hydrocarbons with the longest chains leave the fractioning column?

• Top

• Middle

• Bottom

What is the first state change that happens in the fractioning column?

• evaporation

• condensation

• melting