Question 1

Provide an acceptable name for the compound shown below.

Accepted Answer

3,3,5-trim

Question 2

There is something wrong with the following name. Write the structure and correct the name: 2-ethylpropane.

Accepted Answer

@#IMG-DLM&_TB1830_00

Question 3

Provide an acceptable name for the compound shown below.

Accepted Answer

3,3-dibrom

Question 4

The eclipsed and staggered forms of ethane are said to differ in ________.

Accepted Answer

A) molecular formula 
B) configuration 
C) conformation 
D) constitution 
E) structure 
A) molecular formula 
B) configuration 
C) conformation 
D) constitution 
E) structure

Question 5

Give the structure of isopentyl alcohol.

Accepted Answer

The answer of Give the structure of isopentyl alcohol....

Question 6

Draw the Newman projection of the most stable conformation that results due to rotation about the C2-C3 bond in 2,3-dimethylbutane.

Accepted Answer

Question 7

Use a sawhorse structure to depict the eclipsed conformer of ethane.

Accepted Answer

The answer of Use a sawhorse structure to depict the...

Question 8

Which of the following has the lowest boiling point?

Accepted Answer

A) CH3CH2CH2CH2CH2CH3 
B)    
C)    
D)    
E) CH3CH2CH2CH2CH2CH2CH3 
A) CH3CH2CH2CH2CH2CH3 
B)    
C)    
D)    
E) CH3CH2CH2CH2CH2CH2CH3

Question 9

Name the compound shown below.

Accepted Answer

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

Question 10

Which conformer is at a local energy minimum on the potential energy diagram in the chair-chair interconversion of cyclohexane?

Accepted Answer

A) half-chair 
B) planar 
C) boat 
D) twist-boat 
E) fully eclipsed 
A) half-chair 
B) planar 
C) boat 
D) twist-boat 
E) fully eclipsed

Question 11

In the boat conformation of cyclohexane, the "flagpole" hydrogens are located on ________.

Accepted Answer

A) the same carbon 
B) adjacent carbons 
C) C-1 and C-3 
D) C-1 and C-4 
E) none of the above 
A) the same carbon 
B) adjacent carbons 
C) C-1 and C-3 
D) C-1 and C-4 
E) none of the above

Question 12

Draw the most stable conformer of trans-1-ethyl-2-methylcyclohexane.

Accepted Answer

The answer of Draw the most stable conformer of trans-1-ethyl-2-methylcyclohexane....

Question 13

Consider the three isomeric alkanes n-hexane, 2, 3-dimethylbutane, and 2-methylpentane. Which of the following correctly lists these compounds in order of increasing boiling point?

Accepted Answer

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

Question 14

What is the common name for the following structure?

Accepted Answer

A) Isobutyl bromide 
B) t-Butyl bromide 
C) Neobutyl bromide 
D) sec-Butyl bromide 
E) Isopropyl methyl bromide 
A) Isobutyl bromide 
B) t-Butyl bromide 
C) Neobutyl bromide 
D) sec-Butyl bromide 
E) Isopropyl methyl bromide

Question 15

Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point?

Accepted Answer

A) a tertiary amine 
B) a quaternary ammonium salt 
C) an alcohol 
D) an ether 
E) an alkyl chloride 
A) a tertiary amine 
B) a quaternary ammonium salt 
C) an alcohol 
D) an ether 
E) an alkyl chloride

Question 16

Provide an acceptable name for the compound shown below.

Accepted Answer

5-ethyl-2-

Question 17

Which of the following has two equatorial alkyl substituents in its most stable conformation?

Accepted Answer

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

Question 18

Provide an acceptable name for the alkane shown below.

Accepted Answer

2,2,3,6-te

Question 19

Identify the compound with the highest boiling point.

Accepted Answer

A) CH3CH2OCH2CH3 
B) CH3CH2CH2CH2OH 
C) CH3CH2CH2CH2NH2 
D) CH3CH2CH2CH2Cl 
E) CH3CH2CH2CH2Br 
A) CH3CH2OCH2CH3 
B) CH3CH2CH2CH2OH 
C) CH3CH2CH2CH2NH2 
D) CH3CH2CH2CH2Cl 
E) CH3CH2CH2CH2Br

Question 20

Name the compound.

Accepted Answer

A) 2-ethyl-3-propylpentane 
B) 2,3-diethylhexane 
C) 4-ethyl-5-methylheptane 
D) 4-methyl-3-ethylheptane 
E) 4-ethyl-3-methylheptane 
A) 2-ethyl-3-propylpentane 
B) 2,3-diethylhexane 
C) 4-ethyl-5-methylheptane 
D) 4-methyl-3-ethylheptane 
E) 4-ethyl-3-methylheptane

Exam 3: An Introduction to Organic Compounds

Provide an acceptable name for the compound shown below.

There is something wrong with the following name. Write the structure and correct the name: 2-ethylpropane.

Provide an acceptable name for the compound shown below.

The eclipsed and staggered forms of ethane are said to differ in ________.

Give the structure of isopentyl alcohol.

Draw the Newman projection of the most stable conformation that results due to rotation about the C2-C3 bond in 2,3-dimethylbutane.

Use a sawhorse structure to depict the eclipsed conformer of ethane.

Which of the following has the lowest boiling point?

Name the compound shown below.

Which conformer is at a local energy minimum on the potential energy diagram in the chair-chair interconversion of cyclohexane?

In the boat conformation of cyclohexane, the "flagpole" hydrogens are located on ________.

Draw the most stable conformer of trans-1-ethyl-2-methylcyclohexane.

Consider the three isomeric alkanes n-hexane, 2, 3-dimethylbutane, and 2-methylpentane. Which of the following correctly lists these compounds in order of increasing boiling point?

What is the common name for the following structure?

Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point?

Provide an acceptable name for the compound shown below.

Which of the following has two equatorial alkyl substituents in its most stable conformation?

Provide an acceptable name for the alkane shown below.

Identify the compound with the highest boiling point.

Name the compound.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

Isomers: the Arrangement of Atoms in Space

Alkenes Thermodynamics and Kinetics

Reactions of Alkenes

Reactions of Alkynes Introduction to Multistep Synthesis

Electron Delocalization, Resonance, and Aromaticity More About Molecular Orbital Theory

Substitution Reactions of Alkyl Halides

Elimination Reactions of Alkyl Halides Competition Between Substitution and Elimination

Reactions of Alcohols, Ethers, Epoxides, and Sulfur-Containing Compounds

Organometallic Compounds

Reactions of Alkanes, Radicals

Mass Spectrometry, Infrared Spectroscopy, and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Alpha Carbon of Carbonyl Compounds

Reactions of Benzene and Substituted Benzenes

More About Amines Heterocylic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Catalysis

The Organic Mechanisms of the Coenzymes

The Chemistry of Metabolism

Nucleosides, Nucleotides, and Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

Draw the Newman projection of the most stable conformation that results due to rotation about the C₂-C₃ bond in 2,3-dimethylbutane.