C9 Crude Oil and Hydrocarbons

What are hydrocarbons composed of?

• Carbon and oxygen atoms only

• Carbon, hydrogen, and oxygen atoms

• Carbon and hydrogen atoms only

• Hydrogen and oxygen atoms only

What is the general formula for alkanes?

• CnH2n

• CnH2n+1

• CnHn

• CnH2n+2

What is the general formula for alkenes?

• CnH2n

• CnH2n+1

• CnHn

• CnH2n+2

Which process is used to separate crude oil into simpler mixtures?

• Distillation

• Fractional distillation

• Filtration

• Evaporation

What type of bond do alkanes have between carbon atoms?

• Single bonds

• Double bonds

• Triple bonds

• Ionic bonds

What is produced during complete combustion of hydrocarbons?

• Carbon and water

• Carbon dioxide and water

• Carbon monoxide and water

• Carbon dioxide and hydrogen

What happens during the cracking process?

• Large hydrocarbons are converted into smaller alkenes

• Small hydrocarbons are combined into larger alkanes

• Alkenes are converted into alkanes

• Hydrocarbons are solidified

What is the molecular formula of hexane?

• C5H12

• C6H10

• C6H14

• C6H12

What property do small hydrocarbon molecules have?

• High viscosity

• Low flammability

• Low boiling points

• High boiling points

What is a key characteristic of alkenes compared to alkanes?

• They are saturated hydrocarbons

• They are less reactive

• They contain only single bonds

• They contain at least one double bond