Crude Oil and Hydrocarbons Quiz

Crude oil is:

• A compound

• A mixture of hydrocarbons

• An element

• A polymer

Hydrocarbons are molecules made up of:

• Carbon and Oxygen

• Hydrogen and Nitrogen

• Carbon and Hydrogen

• Hydrogen and Sulphur

Which of these is the general formula for alkanes?

• CnH₂n

• CnH₂n+2

• CnH₂n–2

• CnHn

The first four alkanes in the homologous series are:

• Methane, Ethane, Propane, Butane

• Ethane, Propane, Butane, Pentane

• Methane, Propene, Butane, Ethene

• Propane, Butane, Pentane, Hexane

Explain why crude oil is described as a "finite resource."

Write the molecular formula of butane.

What does the term “homologous series” mean in chemistry?

Explain how you know it belongs to the alkane series.

Why is Crude oil is very important in modern life.

Explain what crude oil is made of and how it is separated.