What is natural gas primarily composed of?

• Hydrocarbon gases

• Nitrogen

• Carbon dioxide

• Water vapour

In its purest form, natural gas is:

• Colourless and odourless

• Colourless and has a strong odour

• Coloured and odourless

• Coloured and has a strong odour

Why is an odour added to natural gas before distribution?

• To improve its energy content

• To make it more visible

• To detect leaks

• To reduce its flammability

What is the chemical symbol for Methane?

• CH4

• C6H6

• C3H8

• C4H10

What is the percentage range of Methane in natural gas?

• 0-5%

• 0-20%

• 0-8%

• 70-90%

Which gas in natural gas can be present up to 20%?

• Ethane

• Propane

• Butane

• Hydrogen sulphide

What is the chemical symbol for Carbon dioxide?

• CO2

• H2O

• N2

• H2S

What is the maximum percentage of Carbon dioxide in natural gas?

• 0-5%

• 0-8%

• 0-20%

• 70-90%

Which of the following gases is not typically found in natural gas?

• Methane

• Ethane

• Oxygen

• Butane

What is the chemical symbol for Butane?

• C4H10

• C3H8

• C6H6

• H2S