The study of the chemistry of carbon compounds is called
a. Biochemistry
b. Chemical biology
c. Ecology
d. Organic chemistry

D

Which of the following classes of organic compounds has the simplest composition?
a. Alcohols
b. Amino acids
c. Carbohydrates
d. Hydrocarbons

D

Successive members of the alkane series differ from the preceding
member by one additional
a. C atom and one H atom
b. C atom and 2 H atoms
c. C atom and 3 H atoms
d. H atom and 2 C atoms

B

Structural isomers are compounds whose molecules have the same
a. Numbers of C atoms but different numbers of H atoms
b. Numbers of H atoms but different numbers of C atoms
c. Numbers and kinds of atoms but different structures
d. Kinds of atoms but different numbers of these atoms

C

As the molecular mass of the members of the alkane series increases,
their boiling points
a. Decrease
b. Increase
c. Remain the same
d. Vary randomly

B

A cyclic compound with 6 C atoms and 12 H atoms is
a. Cyclobutane
b. Cycloheptane
c. Cyclohexane
d. Cyclosexane

C

The family of hydrocarbons whose molecules have a triple bond between
carbon atoms is the
a. Alkanes
b. Alkenes
c. Alkynes
d. Aromatic hydrocarbons

C

Addition reactions occur with alkenes but not with alkanes because
alkenes have
a. Double bonds
b. A greater molecular mass
c. More C atoms per molecule
d. A tetrahedral arrangement of bonds

A

Geometric isomers are compounds whose molecules have different
a. Numbers of double bonds
b. Arrangements of groups around the double bond
c. Types of atoms attached to each carbon
d. Structures based on the connections between atoms

B

Which of the following cannot be the molecular formula for an
unsaturated hydrocarbon?
a. C4H10
b. C5H10
c. C7H12
d. C8H16

A

Which compound is an aromatic hydrocarbon?
a. Acetylene
b. Butadiene
c. Chlorobenzene
d. Cyclohexene

C

A hydrocarbon with a benzene-like structure is called a(n)
____________ hydrocarbon
a. Aliphatic
b. Aromatic
c. Saturated
d. Unsaturated

B

Naphthalene is an
a. Alkane
b. Alkene
c. Alkyne
d. Aromatic hydrocarbon

D

The reactivity of benzene ring reflects
a. Its aromatic odor
b. The presence of carbon-carbon double bonds
c. Its saturated structure
d. The spreading of 6 electrons over all six carbon atoms

D

The compound CHCl3 is named
a. Chloroform
b. Methyl chloride
c. Methylene chloride
d. Methyl formate

B

The compound CFCl2 is
a. A chlorofluorocarbon
b. Chloroform
c. Methyl chloride
d. Methylene chloride

A

A specific structural arrangement of atoms or bonds that imparts
characteristic properties to a molecule is called a(n)
a. Catalyst
b. Empirical formula
c. Functional group
d. Substituent

C

The formula CH3CH2CH2 � represents
a. An alkyl group
b. A functional group
c. Propane
d. Propylene

A

How many carbon atoms are there in an ethyl group?
a. 2
b. 3
c. 4
d. 6

A

The formula CH3CH2CH2CH2
� represents a(n)
a. Butyl group
b. Isobutyl group
c. Isopropyl group
d. Propyl group

A

An organic compound with a hydroxyl (OH) functional group on an
aliphatic carbon atom is called a(n)
a. Alcohol
b. Aldehyde
c. Amine
d. Phenol

A

The general formula R�O�R� represents a(n)
a. Ester
b. Ether
c. Ketone
d. Phenol

B

The formula CH3CH2OCH2CH3 represents
a. 2-butanol
b. 2-butanone
c. butyraldehyde
d. Diethyl ether

D

The aldehyde functional group has a carbonyl group attached to
a. An H atom
b. An N atom
c. An OH group
d. 2 other C atoms

A

The ketone functional group has a carbonyl group attached to
a. An OH group
b. An OR group
c. 2 other C atoms
d. 2 other OR groups

C

The general formula R�CO�R� represents a(n)
a. Ester
b. Ether
c. Ketone
d. Phenol

C

The carbon atom in a carboxyl group is bonded to 2 oxygen atoms. The
bonds are
a. Both single
b. One single and one double
c. One single and one triple
d. Both double

B

A name for CH3COCH2CH3 is
a. Butanone
b. Butyraldehyde
c. Propanone
d. Propylaldehyde

A

Oxidation of alcohol on the second carbon of a chain forms a(n)
a. Aldehyde
b. Carboxylic acid
c. Ester
d. Ketone

D

The general formula for an ester is
a. ROR�
b. RCOR�
c. RCOOR�
d. RCONHR�

C

A name for CH3CH2NHCH3 is
a. Butylamine
b. Ethylmethylamine
c. Propanamine
d. Propylamine

B

The amide functional group has a carbonyl group attached to
a. An H atom
b. An N atom
c. An OH group
d. 2 other C atoms

B