Unit 11: Organic Chemistry

Which of the following is an example of an alkane?
a) Ethylene
b) Propane
c) Butene
d) Ethyne
Answer: b) Propane

The general formula for alkenes is:
a) CₙH₂ₙ
b) CₙH₂ₙ₊₂
c) CₙH₂ₙ₋₂
d) CₙH₂ₙ₊₄
Answer: a) CₙH₂ₙ

Which of the following is a characteristic feature of aromatic hydrocarbons?
a) Double bonds
b) Triple bonds
c) Benzene ring
d) Saturated bonds
Answer: c) Benzene ring

The process of converting alkenes to alkanes using hydrogen is called:
a) Halogenation
b) Hydrogenation
c) Dehydration
d) Substitution
Answer: b) Hydrogenation

Which of the following is a functional group of alcohols?
a) -COOH
b) -OH
c) -NH₂
d) -CHO
Answer: b) -OH

The simplest alkyne is:
a) Ethylene
b) Methane
c) Ethyne
d) Butyne
Answer: c) Ethyne

The reaction of an alcohol with a carboxylic acid to form an ester is known as:
a) Saponification
b) Esterification
c) Oxidation
d) Hydrolysis
Answer: b) Esterification

Which of the following compounds is an example of a ketone?
a) Acetone
b) Ethanol
c) Methanol
d) Butanoic acid
Answer: a) Acetone

In which of the following compounds is the carbonyl group present?
a) Aldehyde
b) Ether
c) Alkene
d) Alkane
Answer: a) Aldehyde

The reaction between an alkene and halogen produces:
a) An alcohol
b) An alkane
c) A dihaloalkane
d) An ether
Answer: c) A dihaloalkane