Quiz on Alkanes and Hydrocarbons

What is the general formula for alkanes?

• CnH2n

• CnH2n+2

• CnH2n-2

• CnH2n+1

What is the process of using heat to turn large hydrocarbons into smaller, more useful molecules called?

• Fractional distillation

• Cracking

• Saturation

• Polymerization

Which of the following is a property of alkanes as the chain length increases?

• More flammable

• Less viscous

• Less volatile

• Lower boiling points

What is the main component of crude oil?

• Pure carbon

• Hydrocarbons

• Water

• Oxygen

What is the method of separating different hydrocarbons in crude oil called?

• Cracking

• Fractional distillation

• Filtration

• Evaporation

Which of the following alkanes has the lowest boiling point?

• Methane

• Ethane

• Propane

• Butane

What is the boiling point of butane?

• -162°C

• -89°C

• -42°C

• -0.5°C

What is the catalyst used in catalytic cracking?

• Platinum

• Zeolite

• Nickel

• Iron

What is the temperature range for the distillation of kerosene?

• 60 - 100°C

• 175 - 325°C

• 250 - 350°C

• 300 - 370°C

What is the main product of thermal cracking?

• Motor fuels

• Aromatic hydrocarbons

• Alkenes

• Alcohols