Crude Oil and Hydrocarbons Quiz

What is the general formula for the alkanes?

• CnH2n+4

• CnH2n-2

• CnH2n+2

• CnH2n

What is the main reason for cracking larger hydrocarbons?

• To increase the supply of alkanes

• To decrease the supply of alkenes

• To produce more saturated hydrocarbons

• To match the supply of fractions with the demand for them

What is the main difference between alkanes and alkenes?

• Alkanes have a C=C double bond, alkenes have only single bonds

• Alkanes are unsaturated, alkenes are saturated

• Alkanes have only single bonds, alkenes have at least one C=C double bond

• Alkanes are more reactive than alkenes

What is the process used to separate crude oil into simpler, more useful mixtures?

• Cracking

• Polymerization

• Fractional distillation

• Steam cracking

What is the main source of crude oil?

• Meteorite impact sites

• Oceanic deposits

• Volcanic eruptions

• Remains of ancient plants

What is the main use of ethene produced from crude oil?

• As a fuel for vehicles

• As a feedstock for the petrochemical industry

• As a solvent for cleaning

• As a lubricant for machinery

What is the main product of complete combustion of a hydrocarbon fuel?

• Carbon monoxide

• Carbon dioxide

• Nitrogen dioxide

• Methane

What is the main property that differs between the gases fraction and the bitumen fraction of crude oil?

• Viscosity

• Chemical reactivity

• Boiling points

• Ease of ignition

What is the main reason for using catalytic cracking and steam cracking?

• To decrease the supply of alkanes

• To produce more saturated hydrocarbons

• To increase the supply of alkenes

• To match the supply of fractions with the demand for them

What is the main use of alkenes produced from cracking larger hydrocarbons?

• As a fuel for vehicles

• As a feedstock for the petrochemical industry

• As a solvent for cleaning

• As a lubricant for machinery