Question 1

Which of the following cycloalkanes has the largest heat of combustion?

Accepted Answer

A) cyclopropane 
B) cyclobutane 
C) cyclopentane 
D) cyclohexane 
A) cyclopropane 
B) cyclobutane 
C) cyclopentane 
D) cyclohexane

Question 2

Provide a neatly drawn plot of energy versus dihedral angle for rotation around the C2-C3 bond of butane.

Accepted Answer

The answer of Provide a neatly drawn plot of energy...

Question 3

What is the IUPAC name of the following compound?

Accepted Answer

A) trans-1-isopropyl-4-methylcyclohexane 
B) cis-1-isopropyl-4-methylcyclohexane 
C) cis-2-isopropyl-5-methylcyclohexane 
D) cis-1-tert-butyl-4-methylcyclohexane 
A) trans-1-isopropyl-4-methylcyclohexane 
B) cis-1-isopropyl-4-methylcyclohexane 
C) cis-2-isopropyl-5-methylcyclohexane 
D) cis-1-tert-butyl-4-methylcyclohexane

Question 4

Provide a Newman projection of the most stable conformation of 3-methylpentane, CH3CH2CH(CH3)CH2CH3 looking along the C2-C3 bond.

Accepted Answer

Question 5

Which of the following cycloalkanes has the most ring strain?

Accepted Answer

A) cyclopropane 
B) cyclobutane 
C) cyclopentane 
D) cyclohexane 
A) cyclopropane 
B) cyclobutane 
C) cyclopentane 
D) cyclohexane

Question 6

What is the IUPAC name of the following compound?

Accepted Answer

A) 2-ethyl-4-methylpentane 
B) 2,4-dimethylhexane 
C) 3,5-dimethylhexane 
D) 1,1,3-trimethylpentane 
A) 2-ethyl-4-methylpentane 
B) 2,4-dimethylhexane 
C) 3,5-dimethylhexane 
D) 1,1,3-trimethylpentane

Question 7

Provide a neatly drawn plot of energy versus dihedral angle for rotation around the C-C bond of ethane.

Accepted Answer

The answer of Provide a neatly drawn plot of energy...

Question 8

Which one of the following structures represents a different compound from the other three?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 9

In the following conversion, the conformations are of equal stability.

Accepted Answer

A) True 
 B)False

Question 10

How many hydrogen atoms are there in decane?

Accepted Answer

The answer of How many hydrogen atoms are there in...

Question 11

The following Newman projection represents 2-methylhexane.

Accepted Answer

A) True 
 B)False

Question 12

The most stable conformation of an alkane occurs when carbon-carbon bonds are staggered and bulky groups are anti.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following alkanes has the highest boiling point?

Accepted Answer

A) 2,3-dimethylbutane 
B) 2-methylpentane 
C) 3-methylpentane 
D) hexane 
A) 2,3-dimethylbutane 
B) 2-methylpentane 
C) 3-methylpentane 
D) hexane

Question 14

In the following structure the positions labeled a and d are equatorial positions.

Accepted Answer

A) True 
 B)False

Question 15

What is the approximate dihedral angle between the two chlorine atoms in cis-1,2-dichlorocyclohexane?

Accepted Answer

A) 0$\circ$ 
B) 60$\circ$ 
C) 120$\circ$ 
D) 180$\circ$ 
A) 0$\circ$ 
B) 60$\circ$ 
C) 120$\circ$ 
D) 180$\circ$

Question 16

What is the IUPAC name of the following compound?

Accepted Answer

4-ethyl-2-

Question 17

Which of the following Newman projections represents 2,4-dimethylpentane?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 18

What are the common and IUPAC names of the following compound?

Accepted Answer

common: ne

Question 19

Which one of the following structures represents a different compound from the other three?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 20

What is the IUPAC name of the following compound?

Accepted Answer

The answer of What is the IUPAC name of the...

Exam 2: Alkanes and Cycloalkanes

Which of the following cycloalkanes has the largest heat of combustion?

Provide a neatly drawn plot of energy versus dihedral angle for rotation around the C2-C3 bond of butane.

What is the IUPAC name of the following compound?

Provide a Newman projection of the most stable conformation of 3-methylpentane, CH3CH2CH(CH3)CH2CH3 looking along the C2-C3 bond.

Which of the following cycloalkanes has the most ring strain?

What is the IUPAC name of the following compound?

Provide a neatly drawn plot of energy versus dihedral angle for rotation around the C-C bond of ethane.

Which one of the following structures represents a different compound from the other three?

In the following conversion, the conformations are of equal stability.

How many hydrogen atoms are there in decane?

The following Newman projection represents 2-methylhexane.

The most stable conformation of an alkane occurs when carbon-carbon bonds are staggered and bulky groups are anti.

Which of the following alkanes has the highest boiling point?

In the following structure the positions labeled a and d are equatorial positions.

What is the approximate dihedral angle between the two chlorine atoms in cis-1,2-dichlorocyclohexane?

What is the IUPAC name of the following compound?

Which of the following Newman projections represents 2,4-dimethylpentane?

What are the common and IUPAC names of the following compound?

Which one of the following structures represents a different compound from the other three?

What is the IUPAC name of the following compound?

Covalent Bonding and Shapes of Molecules

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

Provide a Newman projection of the most stable conformation of 3-methylpentane, CH₃CH₂CH(CH₃)CH₂CH₃ looking along the C2-C3 bond.