Question 1

Which of the following has the least ring strain?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V C

Question 2

Which of the following types of isomer differs only by the rotation about single bonds?

Accepted Answer

A) Constitutional 
B) Configurational 
C) Conformational 
D) Diastereomers 
E) Enantiomers 
A) Constitutional 
B) Configurational 
C) Conformational 
D) Diastereomers 
E) Enantiomers C

Question 3

Clearly draw the most stable conformer of the following molecule in chair formation.

Accepted Answer

The answer of Clearly draw the most stable conformer of...

Question 4

Would the cis or trans isomer be more stable for the following disubstituted cyclohexane? Explain.

Accepted Answer

The trans isomer would be more

Question 5

Which of the following Newman projections is least stable?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) All are equally stable. 
A) I 
B) II 
C) III 
D) IV 
E) All are equally stable.

Question 6

Conformational isomers differ by __________.

Accepted Answer

Rotation a

Question 7

Draw the dash-wedge structure that corresponds to the following Newman projection.

Accepted Answer

The answer of Draw the dash-wedge structure that corresponds to...

Question 8

A molecule has two rings,three double bonds,and two triple bonds.How many IHD units does this molecule have?

Accepted Answer

The answer of A molecule has two rings,three double bonds,and...

Question 9

Which of the following chair conformations is lowest in energy?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 10

How many of the following chair conformations have CH3 groups that are trans to each other?

Accepted Answer

Question 11

Label each of the following molecules as cis or trans.

Accepted Answer

The answer of Label each of the following molecules as...

Question 12

Draw the Newman projection that corresponds to the following species.

Accepted Answer

The answer of Draw the Newman projection that corresponds to...

Question 13

Draw the most stable Newman projection for 1-bromo-2-chloroethane.

Accepted Answer

The answer of Draw the most stable Newman projection for...

Question 14

Which of the following dash-wedge structures best represents the Newman projection below?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 15

Which substituents are anti to each other?

Accepted Answer

A) OCH3 and H 
B) Cl and CH2CH3 
C) Br and SH 
D) H and Cl 
E) CH2CH3 and Br 
A) OCH3 and H 
B) Cl and CH2CH3 
C) Br and SH 
D) H and Cl 
E) CH2CH3 and Br

Question 16

Draw the following molecule after it undergoes a chair flip.

Accepted Answer

The answer of Draw the following molecule after it undergoes...

Question 17

Draw the dash-wedge structure that corresponds to the following Newman projection.

Accepted Answer

The answer of Draw the dash-wedge structure that corresponds to...

Question 18

Which of the following compounds has/have substituents cis to each other?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) II and IV 
A) I 
B) II 
C) III 
D) IV 
E) II and IV

Question 19

Draw all alkyne-containing isomers of C5H8.

Accepted Answer

Question 20

Draw six constitutional isomers for C4H11N.

Accepted Answer

Exam 6: Isomerism 1: Conformational and Constitutional Isomers

Which of the following has the least ring strain?

Which of the following types of isomer differs only by the rotation about single bonds?

Clearly draw the most stable conformer of the following molecule in chair formation.

Would the cis or trans isomer be more stable for the following disubstituted cyclohexane? Explain.

Which of the following Newman projections is least stable?

Conformational isomers differ by __________.

Draw the dash-wedge structure that corresponds to the following Newman projection.

A molecule has two rings,three double bonds,and two triple bonds.How many IHD units does this molecule have?

Which of the following chair conformations is lowest in energy?

How many of the following chair conformations have CH3 groups that are trans to each other?

Label each of the following molecules as cis or trans.

Draw the Newman projection that corresponds to the following species.

Draw the most stable Newman projection for 1-bromo-2-chloroethane.

Which of the following dash-wedge structures best represents the Newman projection below?

Which substituents are anti to each other?

Draw the following molecule after it undergoes a chair flip.

Draw the dash-wedge structure that corresponds to the following Newman projection.

Which of the following compounds has/have substituents cis to each other?

Draw all alkyne-containing isomers of C5H8.

Draw six constitutional isomers for C4H11N.

Atomic and Molecular Structure

Interchapter: Nomenclature 1-4

Interchapter 1molecular Orbital Theory and Chemical Reactions

Three-Dimensional Geometry,intermolecular Interactions,and Physical Properties

Orbital Interactions 1: Hybridization and Two-Center Molecular Orbitals

Isomerism 2: Chirality,enantiomers,and Diastereomers

The Proton Transfer Reaction: an Introduction to Mechanisms,thermodynamics,and Charge Stability

An Overview of the Most Common Elementary Steps

An Introduction to Multistep Mechanisms: Sn1 and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 1: Competition Among Sn2,sn1,e2,and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 2: Reactions That Are Useful for Synthesis

Electrophilic Addition to Nonpolar Π Bonds 1: Addition of a Brønsted Acid

Electrophilic Addition to Nonpolar Π Bonds 2: Reactions Involving Cyclic Transition States

Organic Synthesis 1: Beginning Concepts

Orbital Interactions 2: Extended Π Systems,conjugation,and Aromaticity

Structure Determination 1: Ultravioletvisible and Infrared Spectroscopies

Structure Determination 2: Nuclear Magnetic Resonance Spectroscopy and Mass Spectrometry

Nucleophilic Addition to Polar Π Bonds 1: Addition of Strong Nucleophiles

Nucleophilic Addition to Polar Π Bonds 2: Addition of Weak Nucleophiles and Acid and Base Catalysis

Organic Synthesis 2: Intermediate Topics in Synthesis Design,and Useful Reduction and Oxidation Reactions

Nucleophilic Additionelimination Reactions 1: the General Mechanism Involving Strong Nucleophiles

Nucleophilic Additionelimination Reactions 2: Weak Nucleophiles

Electrophilic Aromatic Substitution 1: Substitution on Benzene; Useful Accompanying Reactions

Electrophilic Aromatic Substitution 2: Substitution on Mono- and Disubstituted Benzene and Other Aromatic Rings

The Dielsalder Reaction and Other Pericyclic Reactions

Reactions Involving Free Radicals

Polymers

Filters

How many of the following chair conformations have CH₃groups that are trans to each other?

Draw all alkyne-containing isomers of C₅H₈.

Draw six constitutional isomers for C₄H₁₁N.