Question 1

Which of the following Newman projections represents the most stable conformation of 2-methylbutane?

Accepted Answer

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

Question 2

What is the IUPAC name of the following compound?

Accepted Answer

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

Question 3

Provide a line-bond structure of hexanoic acid.

Accepted Answer

The answer of Provide a line-bond structure of hexanoic acid....

Question 4

How many constitutional isomers are there with the molecular formula C5H12?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 5

What is the IUPAC name of the following compound?

Accepted Answer

2,4,4-trim

Question 6

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 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

The following Newman projection represents 2-methylhexane.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane?

Accepted Answer

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

Question 10

Which of the following is the most stable conformation of trans-1-ethyl-3-methylcyclohexane?

Accepted Answer

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

Question 11

How many hydrogen atoms are there in octane?

Accepted Answer

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

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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 14

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

Accepted Answer

A)  0° 
B)  60° 
C)  120° 
D)  180° 
A)  0° 
B)  60° 
C)  120° 
D)  180°

Question 15

The Newman projection of the gauche conformation of 1,2-dichloroethane is shown below.

Accepted Answer

A) True 
 B)False

Question 16

How many hydrogen atoms are there in decane?

Accepted Answer

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

Question 17

Provide a line-bond structure of pentanal.

Accepted Answer

The answer of Provide a line-bond structure of pentanal....

Question 18

There are four constitutional isomers for the molecular formula C6H14.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups?

Accepted Answer

A)  cis-1,2-dimethylcyclohexane 
B)  cis-1,3-dimethylcyclohexane 
C)  trans-1,3-dimethylcyclohexane 
D)  cis-1,4-dimethylcyclohexane 
A)  cis-1,2-dimethylcyclohexane 
B)  cis-1,3-dimethylcyclohexane 
C)  trans-1,3-dimethylcyclohexane 
D)  cis-1,4-dimethylcyclohexane

Exam 2: Alkanes and Cycloalkanes

Which of the following Newman projections represents the most stable conformation of 2-methylbutane?

What is the IUPAC name of the following compound?

Provide a line-bond structure of hexanoic acid.

How many constitutional isomers are there with the molecular formula C5H12?

What is the IUPAC name of the following compound?

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

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

The following Newman projection represents 2-methylhexane.

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane?

Which of the following is the most stable conformation of trans-1-ethyl-3-methylcyclohexane?

How many hydrogen atoms are there in octane?

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

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

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

The Newman projection of the gauche conformation of 1,2-dichloroethane is shown below.

How many hydrogen atoms are there in decane?

Provide a line-bond structure of pentanal.

There are four constitutional isomers for the molecular formula C6H14.

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

Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups?

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

How many constitutional isomers are there with the molecular formula C₅H₁₂?

There are four constitutional isomers for the molecular formula C₆H₁₄.