hydrocarbons

State the 2 elements that make hydrocarbons

• carbon and hydrogen

• helium and carbon

• hydrogen and calcium

• hydrogen and oxygen

Which of these is not a hydrocarbon?

• methane

• propene

• carbon dioxide

• octane

In fractional distillation, the crude oil is heated and then the fraction with the lowest boiling point evaporates first. Which of these is the smallest alkane with the lowest boiling point?

• bitumen

• fuel oil

• kerosene

• methane

Which of these alkanes would be most viscous?

• fuel oil

• bitumen

• kerosene

• methane

Select a use of kerosene

• surfacing roads

• fuel for a BBQ

• fuel for jet engines

• use in car engines

Which of these hydrocarbon fractions would be used for road surfacing?

• bitumen

• kerosene

• fuel oil

• petrol

If an alkane has 4 carbons how many hydrogens will it have? (HINT: Cn H2n+2)

• 8

• 2

• 10

• 12

A different alkane has 6 carbons, how many hydrogens will it have?

• 8

• 12

• 6

• 14

What is the general formula for alkanes?

• Cn H2n-2

• Cn H2n

• Cn H2n+2

• Cn H2n+1

Which of these processes is used to separate crude oil into different fractions?

• fractional distillation

• polymerization

• hydrogenation

• cracking