1.

The most correct IUPAC name for the molecule shown on the right is:

A.

1-aminodioxy-3,4-dimethylcyclopentane

B.

1,2-dimethyl-4-nitrocyclopentane

C.

1,2-dimethylcyclopentyl-4-nitrate

D.

3,4-dimethyl-1-nitrocyclopentane

E.

1-amino-2,3-dimethylcyclopentane

2.

The most correct IUPAC name for the molecule shown on the right is:

A.

1-chloromethyl-1,4-dichlorohexane

B.

1-chloroethyl-1-(1,4-dichloro)hexane

C.

1,2-dichloroethyl-3-chloropentane

D.

1,2,5-trichloroheptane

E.

3,6-dichlorohexyl-6-(1-chloro)methane

3.

The most correct IUPAC name for the molecule shown on the right is:

A.

5-ethyl-3-methyl-1-bromocyclohexane

B.

1-bromo-(3-methyl-5-ethyl)cyclohexane

C.

1-bromo-3-ethyl-5-methylcyclohexane

D.

2-(3-bromo-5-methylcyclohexyl)ethane

E.

3-ethyl-5-methyl-bromocyclohexane

4.

The most correct IUPAC name for the molecule shown on the right is:

A.

1-(3-bromo-2-methylbutyl)cyclopropane

B.

1-bromo-(3-methyl-5-ethyl)cyclohexane

C.

1-bromo-3-ethyl-5-methylcyclohexane

D.

2-(3-bromo-5-methylcyclohexyl)ethane

E.

3-bromo-1-cyclopropyl-2-methylbutane

5.

The most correct IUPAC name for the molecule shown on the right is:

A.

1-chloro-2-methyl-4,4-dibromocyclohexane

B.

4-chloro-1,1-dibromo-3-methylcyclohexane

C.

1,1-dibromo-4-chloro-3-methylcyclohexane

D.

trans-1,1-dibromo-4-chloro-3-methylcyclohexane

E.

1,1-dibromo-4-chloromethylcyclohexane

6.

The most correct IUPAC name for the molecule shown on the right is:

A.

3-(2-bromoethyl)-3-methylhexane

B.

1-bromo-3-ethyl-3-methylhexane

C.

1-bromo-3-propyl-3-methylpentane

D.

3-(2-bromoethyl)-3-ethylpentane

E.

2-(2-bromoethyl)-2-ethylpentane

7.

The most correct IUPAC name for the molecule shown on the right is:

A.

cis-1-chloro-3-methylcyclohexane

B.

cis-1-chloromethylcyclohexane

C.

1,3-diaxial-chloromethylcyclohexane

D.

trans-1-chloro-3-methylcyclohexane

E.

cis-1-chloro-trans-3-methylcyclohexane

8.

The most correct IUPAC name for the molecule shown on the right is:

A.

trans-1-chloro-3-(1-methylpropyl)cyclobutane

B.

cis-1-(3-chlorocyclobutyl)-1-methylpropane

C.

1-(cis-3-chlorocyclobutyl)-1-methylpropane

D.

trans-1-(3-chlorocyclobutyl)-1-methylpropane

E.

cis-1-chloro-3-(1-methylpropyl)cyclobutane

9.

The two molecules shown on the right are:

A.

identical

B.

constitutional isomers

C.

conformational isomers

D.

different compounds

E.

isomeric, but not constitutional isomers

10.

Which statement is not true regarding the molecule on the right?

A.

methyl groups (1) & (2) are trans to each other

B.

methyl groups (2) & (3) are trans to each other

C.

methyl groups (1) & (3) are cis to each other

D.

in the most stable conformation, methyl (3) is equatorial

E.

if methyl group (3) is equatorial, methyl (2) will be axial

11.

The two molecules shown on the right are:

A.

identical

B.

constitutional isomers

C.

conformational isomers

D.

rotamers, but not conformational isomers

E.

different chemical compounds

12.

Which is not true regarding the molecule shown on the right?

A.

the ring junction is cis

B.

the tert-butyl group is in an equatorial (stable) position

C.

the methyl group is cis to the carbons in the ring junction

D.

the compound cannot undergo ring inversion

E.

the tert-butyl group is cis to the carbons in the ring junction

13.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different, and not isomers	D . cis-trans isomers

14.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different, and not isomers	D . cis-trans isomers

15.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different, and not isomers	D . cis-trans isomers

16.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different, and not isomers	D . cis-trans isomers

17.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different,and not isomers	D . cis-trans isomers

18.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different, and not isomers	D . cis-trans isomers

19.

The two compounds shown below are:

A. identical	B. constitutional isomers
C. different compounds	D . cis-trans isomers

20.

Which of the molecules shown below is Z-1,2-dichloro-1-ethylcyclopentane?

A

B

C

D

21.

Which of the molecules shown below is E-1,3-dimethylcyclohexane?

A

B

C

D

22.

Which of the molecules shown below is 2,2-dimethylbutane?

A

B

C

D

23.

Which of the molecules below have the empirical formula (CH₂)?

A. a only	B. b only	C. c only
D. d only	E. a & b only	F. a & d only

24.

Which of the molecules below have three degrees of unsaturation?

A. a only	B. b only	C. c only
D. d only	E. a & b only	F. a & d only

25.

Which of the molecules below are constitutional isomers?

A. a only	B. b only	C. c only
D. d only	E. a & b only	F. a, b & d only