AQA D&T Polymers - Sources & origins

Crude oil is a naturally occurring material that comes from the

What process is used to separate crude oil in hydrocarbons with different chain lengths?

• distillation

• fractional distillation

• cracking

• polymerisation

What change of states are included in fractional distillation? (Can select two or more answers)

• Melting

• Evaporation

• Condensation

• Freezing

Where do short chain hydrocarbons collect?

• At the top

• In the middle

• At the bottom

What process happens as the crude oil enters the fractionating column?

• Evaporation

• Condensation

• Combustion

Oil fraction with the lowest boiling point

• refinery gases

• bitumen

• Petrol

• diesel

What physical property allows Fractional Distillation to separate different fractions of crude oil?

• Melting point

• Boiling point

• Diffusion rate

• Condensation rate

What is kerosene used for?

• Fuel for ships
• Fuel for lorries
• Fuel for airplanes
• Making roads

Choose all the products of cracking

• a longer chain alkane

• a shorter chain alkane

• An Alkene

• An isotope

• An ion

What process happens at each level in the fractionating column?

• Evaporation

• Condensation

• Combustion