Which of the following is used in the production of synthetic fibers like polyester?
a) Ethylene
b) Propylene
c) Styrene
d) Toluene
Answer: a) Ethylene

Which of the following hydrocarbons is used in the production of gasoline?
a) Methane
b) Butane
c) Octane
d) Benzene
Answer: c) Octane

Which of the following reactions involves the removal of a hydrogen atom from an alkene?
a) Hydrogenation
b) Dehydration
c) Halogenation
d) Cracking
Answer: b) Dehydration

Which of the following is a characteristic of aromatic hydrocarbons?
a) They contain benzene rings
b) They are saturated hydrocarbons
c) They have the general formula CₙH₂ₙ
d) They are less reactive than alkenes
Answer: a) They contain benzene rings

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

Which of the following hydrocarbons is used in the production of antifreeze?
a) Ethylene glycol
b) Methanol
c) Benzene
d) Propylene
Answer: a) Ethylene glycol

Which of the following is a property of alkanes?
a) They are unsaturated hydrocarbons
b) They have the general formula CₙH₂ₙ
c) They are less reactive than alkenes
d) They contain one or more double bonds
Answer: c) They are less reactive than alkenes

Which of the following hydrocarbons is used in the production of synthetic fibers like nylon?
a) Benzene
b) Ethylene
c) Propylene
d) Butadiene
Answer: a) Benzene

Which of the following hydrocarbons is a liquid at room temperature and used as a solvent in various industrial processes?
a) Methane
b) Benzene
c) Butane
d) Ethylene
Answer: b) Benzene

Which of the following hydrocarbons is used in the production of synthetic rubbers and plastics?
a) Methane
b) Propylene
c) Styrene
d) Ethylene
Answer: c) Styrene