Hydrocarbons Quiz

What is the general formula for an alkane?

• CnH2n+2

• CnH2n

• CnH2n-2

• CnH2n+1

What is the process used to separate hydrocarbons in crude oil?

• Simple distillation

• Fractional distillation

• Filtration

• Evaporation

What is the mnemonic to remember the order of the first four alkanes?

• My elephant plays basketball

• Mice eat paper bags

• Cats jump over walls

• Dogs bark at night

What is the molecular formula for methane?

• C2H6

• CH4

• C3H8

• C4H10

What is produced during incomplete combustion?

• Carbon dioxide and water

• Carbon monoxide and water

• Only carbon dioxide

• Only water

What is the structural formula for ethane?

• CH4

• C2H6

• C3H8

• C4H10

What is the main use of the fraction C5 to C6 in crude oil?

• Lubricating oils

• Petrol for vehicles

• Diesel fuels

• Jet fuel

What is the role of a fractioning column in fractional distillation?

• To cool the crude oil

• To heat the crude oil

• To separate fractions based on boiling points

• To mix different hydrocarbons

What is cracking an example of?

• Thermal decomposition reaction

• Combustion reaction

• Neutralization reaction

• Precipitation reaction

What does catalytic cracking involve?

• Heating a hydrocarbon to a low temperature

• Heating a hydrocarbon to a high temperature

• Cooling a hydrocarbon rapidly

• Mixing hydrocarbons with water