Which of the following hydrocarbons is a gas at room temperature and used in natural gas?
a) Methane
b) Propane
c) Butane
d) Ethylene
Answer: a) Methane

Which reaction involves the removal of water from an alcohol to form an alkene?
a) Dehydration
b) Hydration
c) Hydrogenation
d) Halogenation
Answer: a) Dehydration

**Which of the

following hydrocarbons is used in the production of styrofoam?**
a) Benzene
b) Styrene
c) Ethylene
d) Propylene
Answer: b) Styrene

Which of the following hydrocarbons is used as an anti-knock agent in fuels?
a) Methane
b) Ethylene
c) Toluene
d) Butylene
Answer: c) Toluene

Which type of hydrocarbon is characterized by the presence of a benzene ring?
a) Alkane
b) Alkene
c) Alkyne
d) Aromatic hydrocarbon
Answer: d) Aromatic hydrocarbon

Which of the following hydrocarbons has a sweet odor and is used as a solvent in paints?
a) Methane
b) Toluene
c) Ethylene
d) Propylene
Answer: b) Toluene

Which of the following hydrocarbons is a liquid at room temperature and used as a fuel in camping stoves?
a) Butane
b) Methane
c) Ethylene
d) Propylene
Answer: a) Butane

Which of the following hydrocarbons is used as a raw material in the production of synthetic fibers and plastics?
a) Ethylene
b) Propylene
c) Styrene
d) All of the above
Answer: d) All of the above

Which of the following hydrocarbons is used in the production of detergents and surfactants?
a) Benzene
b) Ethylene
c) Propylene
d) Styrene
Answer: c) Propylene

The presence of which type of bond makes alkenes different from alkanes?
a) Triple bonds
b) Double bonds
c) Single bonds
d) Quadruple bonds
Answer: b) Double bonds