Petroleum

Which statement about petroleum is not correct?

• It can be separated into useful substances by fractional distillation.

• It consists mainly of hydrocarbons.

• It is found underground in many parts of the world.

• Its main use is for making lubricants and polishes.

Diesel, petrol and bitumen are all

• fuels.

• hydrocarbons.

• lubricants.

• waxes

Petroleum is a very important raw material that is separated into more useful products.

Which terms describe petroleum and the method used to separate it?

• compound, cracking

• compound, fractional distillation

• mixture, cracking

• mixture, fractional distillation

Which properties of the different compounds in petroleum enable its separation into fractions?

1 boiling point

2 chain length

3 chemical reactivity

4 solubility in water

• 1 and 2

• 1 and 3

• 2 and 4

• 3 and 4

Which method is used to obtain petrol from petroleum?

• crystallisation

• B diffusion

• C filtration

• D fractional distillation

Which fraction from the fractional distillation of petroleum does not match its correct use?

• fuel oil, domestic heating

• kerosene, jet fuel

• naphtha, making roads

• refinery gas, for heating and cooking

Petroleum is a mixture of hydrocarbons which can be separated into fractions using fractional distillation.

Which fraction is used as fuel in jet engines?

• bitumen

• gasoline

• kerosene

• naphtha

Which process does not involve oxidation?

• A burning a fossil fuel

• B conversion of iron from the blast furnace into steel

• C distillation of crude oil

• D rusting of iron

Which statement is not correct?

• A Petroleum is a mixture of hydrocarbons.

• B The main constituent of natural gas is ethane.

• C The naphtha fraction of petroleum is used for making chemicals.

• D When natural gas burns in air, carbon dioxide and water are formed.

Some of the fractions obtained from the fractional distillation of petroleum are used as fuels for vehicles.

Which two fractions are used as fuels for vehicles?

• A bitumen fraction and gasoline fraction

• B bitumen fraction and naphtha fraction

• C gasoline fraction and kerosene fraction

• D kerosene fraction and lubricating fraction