Question 1

Which of the following is the most stable conformation of cis-1-isopropyl-3-methylcyclohexane?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)   C

Question 2

Instructions: For each disubstituted cyclohexane below, draw its ring-flip isomer. Circle the most stable conformation and label the substituent groups as axial or equatorial.
-Draw and label:

Accepted Answer

conformations are of equal stability

Question 3

Draw two isomeric alcohols with the formula C4H10O.

Accepted Answer

Question 4

Instructions:
Consider the conformations of 2-methylbutane shown below to answer the following questions.  
-Refer to Instructions. Which of the structures represents the least stable conformation of 2-methylbutane?

Accepted Answer

The answer of Instructions:
Consider the conformations of 2-methylbutane shown below...

Question 5

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 6

Which of the following functional group classifications do not contain oxygen?

Accepted Answer

A)  ether 
B)  thiol 
C)  aldehyde 
D)  ester 
E)  amide 
A)  ether 
B)  thiol 
C)  aldehyde 
D)  ester 
E)  amide

Question 7

Label the following pair of compounds as:

Accepted Answer

A)  identical 
B)  constitutional isomers 
C)  stereoisomers 
D)  unrelated 
A)  identical 
B)  constitutional isomers 
C)  stereoisomers 
D)  unrelated

Question 8

Instructions:
MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. 
-Refer to Instructions. _____is an aromatic ketone.

Accepted Answer

A)   
B)   
C)   
D)   
E)   
F) 
G)  
A)   
B)   
C)   
D)   
E)   
F) 
G)

Question 9

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 10

Instructions:
Consider the conformations of 2-methylbutane shown below to answer the following questions.  
-Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane.
There are two staggered conformations of 1,2-dichloroethane. Draw them.

Accepted Answer

The answer of Instructions:
Consider the conformations of 2-methylbutane shown below...

Question 11

Instructions:
MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. 
-Refer to Instructions. _______is an amino aldehyde.

Accepted Answer

A)   
B)   
C)   
D)   
E)   
F) 
G)  
A)   
B)   
C)   
D)   
E)   
F) 
G)

Question 12

Instructions: Label each pair of compounds below as:
A)identical
B)stereoisomers
C)constitutional isomers
D)identical, but differing in conformation
Where stereoisomers are present, label the isomers as cis and trans.
-Label:

Accepted Answer

The answer of Instructions: Label each pair of compounds below...

Question 13

Designate each carbon as primary, secondary, tertiary, or quaternary.

Accepted Answer

The answer of Designate each carbon as primary, secondary, tertiary,...

Question 14

Which of the following structures represents trans-1,2-dimethylcyclohexane?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 15

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

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 16

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  both a and c 
E)  There are no tertiary hydrogen atoms. 
A)  a 
B)  b 
C)  c 
D)  both a and c 
E)  There are no tertiary hydrogen atoms.

Question 17

Instructions:
Consider the conformations of 2-methylbutane shown below to answer the following questions.  
-Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane.
There are two eclipsed conformations of 1,2-dichloroethane. Draw them.

Accepted Answer

The answer of Instructions:
Consider the conformations of 2-methylbutane shown below...

Question 18

In which of the following compounds would the carbon-carbon bond angle diverge the greatest from 109$\degree$?

Accepted Answer

A)  cyclodecane 
B)  cyclooctane 
C)  cyclopentane 
D)  cyclopropane 
A)  cyclodecane 
B)  cyclooctane 
C)  cyclopentane 
D)  cyclopropane

Question 19

Draw and name the seven constitutional isomers for cycloalkane, C6H12.

Accepted Answer

Question 20

Instructions: Label each pair of compounds below as:
A)identical
B)stereoisomers
C)constitutional isomers
D)identical, but differing in conformation
Where stereoisomers are present, label the isomers as cis and trans.
-Label:

Accepted Answer

The answer of Instructions: Label each pair of compounds below...

Which of the following is the most stable conformation of cis-1-isopropyl-3-methylcyclohexane?

Instructions: For each disubstituted cyclohexane below, draw its ring-flip isomer. Circle the most stable conformation and label the substituent groups as axial or equatorial. -Draw and label:

Draw two isomeric alcohols with the formula C₄H₁₀O.

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Refer to Instructions. Which of the structures represents the least stable conformation of 2-methylbutane?

What is the IUPAC name of the following compound?

Which of the following functional group classifications do not contain oxygen?

Label the following pair of compounds as:

Instructions: MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. -Refer to Instructions. _____is an aromatic ketone.

Which of the following cycloalkanes has the most ring strain?

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane. There are two staggered conformations of 1,2-dichloroethane. Draw them.

Instructions: MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. -Refer to Instructions. _______is an amino aldehyde.

Instructions: Label each pair of compounds below as: A)identical B)stereoisomers C)constitutional isomers D)identical, but differing in conformation Where stereoisomers are present, label the isomers as cis and trans. -Label:

Designate each carbon as primary, secondary, tertiary, or quaternary.

Which of the following structures represents trans-1,2-dimethylcyclohexane?

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

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane. There are two eclipsed conformations of 1,2-dichloroethane. Draw them.

In which of the following compounds would the carbon-carbon bond angle diverge the greatest from 109 $\degree$ ?

Draw and name the seven constitutional isomers for cycloalkane, C₆H₁₂.

Instructions: Label each pair of compounds below as: A)identical B)stereoisomers C)constitutional isomers D)identical, but differing in conformation Where stereoisomers are present, label the isomers as cis and trans. -Label:

Structure and Bonding:acids and Bases

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Exam 2: Alkanes: the Nature of Organic Compounds

Which of the following is the most stable conformation of cis-1-isopropyl-3-methylcyclohexane?

Instructions: For each disubstituted cyclohexane below, draw its ring-flip isomer. Circle the most stable conformation and label the substituent groups as axial or equatorial. -Draw and label:

Draw two isomeric alcohols with the formula C4H10O.

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Refer to Instructions. Which of the structures represents the least stable conformation of 2-methylbutane?

What is the IUPAC name of the following compound?

Which of the following functional group classifications do not contain oxygen?

Label the following pair of compounds as:

Instructions: MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. -Refer to Instructions. _____is an aromatic ketone.

Which of the following cycloalkanes has the most ring strain?

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane. There are two staggered conformations of 1,2-dichloroethane. Draw them.

Instructions: MATCH a structure below to each of the following descriptions and place the letter corresponding to the structure in the blank. -Refer to Instructions. _______is an amino aldehyde.

Instructions: Label each pair of compounds below as: A)identical B)stereoisomers C)constitutional isomers D)identical, but differing in conformation Where stereoisomers are present, label the isomers as cis and trans. -Label:

Designate each carbon as primary, secondary, tertiary, or quaternary.

Which of the following structures represents trans-1,2-dimethylcyclohexane?

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

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

Instructions: Consider the conformations of 2-methylbutane shown below to answer the following questions. -Draw the Newman projection for the specified conformations for rotation about the C-C bond of 1,2-dichloroethane. There are two eclipsed conformations of 1,2-dichloroethane. Draw them.

In which of the following compounds would the carbon-carbon bond angle diverge the greatest from 109 °\degree° ?

Draw and name the seven constitutional isomers for cycloalkane, C6H12.

Instructions: Label each pair of compounds below as: A)identical B)stereoisomers C)constitutional isomers D)identical, but differing in conformation Where stereoisomers are present, label the isomers as cis and trans. -Label:

Structure and Bonding:acids and Bases

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Draw two isomeric alcohols with the formula C₄H₁₀O.

In which of the following compounds would the carbon-carbon bond angle diverge the greatest from 109 $\degree$ ?

Draw and name the seven constitutional isomers for cycloalkane, C₆H₁₂.