Which of the following is not a property of alkanes?
a) They are saturated hydrocarbons
b) They have single bonds between carbon atoms
c) They are highly reactive
d) They have the general formula CₙH₂ₙ₊₂
Answer: c) They are highly reactive

The process of converting larger hydrocarbons into smaller ones is called:
a) Cracking
b) Polymerization
c) Hydrogenation
d) Halogenation
Answer: a) Cracking

Which of the following hydrocarbons is used in the production of synthetic rubber and plastics?
a) Ethylene
b) Butylene
c) Propylene
d) All of the above
Answer: d) All of the above

Which of the following hydrocarbons has the formula C₆H₆?
a) Benzene
b) Toluene
c) Ethylene
d) Propylene
Answer: a) Benzene

Which type of reaction is used to convert alkenes to alcohols?
a) Hydration
b) Dehydration
c) Hydrogenation
d) Halogenation
Answer: a) Hydration

Which of the following is an example of a cyclic hydrocarbon?
a) Ethylene
b) Benzene
c) Methane
d) Propane
Answer: b) Benzene

The boiling point of hydrocarbons generally increases with:
a) Increasing number of carbon atoms
b) Increasing number of double bonds
c) Increasing number of triple bonds
d) Increasing branching
Answer: a) Increasing number of carbon atoms

Which of the following is a common use of ethylene?
a) Production of synthetic rubber
b) Production of polyethylene
c) Fuel in vehicles
d) Solvent in dry cleaning
Answer: b) Production of polyethylene

Which of the following hydrocarbons is used as a solvent in paint thinners?
a) Methane
b) Toluene
c) Ethylene
d) Butane
Answer: b) Toluene

Which of the following hydrocarbons is a component of natural gas?
a) Methane
b) Benzene
c) Styrene
d) Ethylene
Answer: a) Methane