The name of the process used to make polyethylene from ethylene is:
a) Cracking
b) Polymerization
c) Hydrogenation
d) Halogenation
Answer: b) Polymerization

Which of the following is the smallest aromatic hydrocarbon?
a) Benzene
b) Toluene
c) Xylene
d) Naphthalene
Answer: a) Benzene

The formula for propylene is:
a) C₃H₄
b) C₃H₆
c) C₄H₈
d) C₂H₄
Answer: b) C₃H₆

Which of the following hydrocarbons has the highest boiling point?
a) Methane
b) Ethane
c) Propane
d) Butane
Answer: d) Butane

Which of the following hydrocarbons is a liquid at room temperature and used in the preparation of synthetic rubber?
a) Ethylene
b) Propylene
c) Styrene
d) Butane
Answer: c) Styrene

The reaction of an alkene with oxygen to form carbon dioxide and water is an example of:
a) Substitution reaction
b) Addition reaction
c) Combustion reaction
d) Elimination reaction
Answer: c) Combustion reaction

Which of the following hydrocarbons is known as ethylene glycol?
a) C₂H₄
b) C₂H₆
c) C₂H₄(OH)₂
d) C₂H₂
Answer: c) C₂H₄(OH)₂

Which hydrocarbon is used as a refrigerant?
a) Methane
b) Ethylene
c) Propane
d) Freon
Answer: d) Freon

The general formula for alkynes is:
a) CₙH₂ₙ₊₂
b) CₙH₂ₙ
c) CₙH₂ₙ₋₂
d) CₙH₃
Answer: c) CₙH₂ₙ₋₂

Which of the following hydrocarbons is a primary constituent of natural gas?
a) Methane
b) Ethylene
c) Propylene
d) Benzene
Answer: a) Methane