Question 1

Which is not true of a free energy diagram for an SN1 reaction?

Accepted Answer

A) It includes local energy minima between transition states. 
B) It includes intermediates that are higher in energy than reactants or products. 
C) It includes two transition states. 
D) The heteolysis step always has the highest energy barrier. 
E) All of the above are true. 
A) It includes local energy minima between transition states. 
B) It includes intermediates that are higher in energy than reactants or products. 
C) It includes two transition states. 
D) The heteolysis step always has the highest energy barrier. 
E) All of the above are true.

Question 2

Draw a detailed free energy diagram for the following SN1 reaction.Include and label the overall reactants,the overall products,the intermediate(s),the axis,and the transition state(s).

Accepted Answer

Question 3

Draw the product(s)of the following E2 reaction.

Accepted Answer

The answer of Draw the product(s)of the following E2 reaction....

Question 4

If the following compound undergoes a 1,2-hydride shift,what is the most likely product?

Accepted Answer

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

Question 5

Which is true of a free energy diagram for an E1 reaction?

Accepted Answer

A) It proceeds through a carbocation intermediate. 
B) It begins with the rate-determining step. 
C) It includes two transition states. 
D) It ends with alkene-containing products. 
E) All of the above are true. 
A) It proceeds through a carbocation intermediate. 
B) It begins with the rate-determining step. 
C) It includes two transition states. 
D) It ends with alkene-containing products. 
E) All of the above are true.

Question 6

Explain why the following carbocation rearrangement is not likely.

Accepted Answer

Rearrangement occurs only when a more st

Question 7

Which of the following steps could be found in an SN1 mechanism?

Accepted Answer

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

Question 8

Which of the following will not undergo a 1,2-hydride shift?

Accepted Answer

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

Question 9

The following mechanism has an unreasonable step.Indicate which step is unreasonable,and explain why.

Accepted Answer

Step 2 is unreasonable because it underg

Question 10

Draw a detailed free energy diagram for the following E1 reaction.Include and label the overall reactants,the overall products,the intermediate(s),the axis,and the transition state(s).

Accepted Answer

The answer of Draw a detailed free energy diagram for...

Question 11

Explain why the following carbocation rearrangement is not likely.

Accepted Answer

Rearrangement occurs only when

Question 12

What is the product of the following E1 reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) A mixture of II and III 
E) An E1 reaction mechanism is not possible. 
A) I 
B) II 
C) III 
D) A mixture of II and III 
E) An E1 reaction mechanism is not possible.

Question 13

Which of the following mechanism steps is not allowed?

Accepted Answer

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

Question 14

For the following E2 reaction,what would happen to the rate if the concentration of A was doubled?

Accepted Answer

The reacti

Question 15

Which of the following could be the rate law for an SN1 reaction?

Accepted Answer

A) Rate = k[A] 
B) Rate = k[A]2 
C) Rate = k[A][B] 
D) Rate = k[A][B]2 
E) Rate = k[A]2[B]2 
A) Rate = k[A] 
B) Rate = k[A]2 
C) Rate = k[A][B] 
D) Rate = k[A][B]2 
E) Rate = k[A]2[B]2

Question 16

What is the most likely product of the following SN2 reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) A racemic mixture of II and III 
A) I 
B) II 
C) III 
D) IV 
E) A racemic mixture of II and III

Question 17

SN2 reactions require ________ attack of the substrate by the nucleophile.

Accepted Answer

Question 18

For the following SN1 reaction,what would happen to the rate if the concentration of B was quadrupled?

Accepted Answer

The reaction rate wo

Question 19

The following alkyl bromide can react with NaF via an SN1 mechanism.Draw the mechanism and product(s)of this reaction.Be sure to pay attention to stereochemistry,if applicable.

Accepted Answer

Question 20

Which of the following would undergo a 1,2-methyl shift?

Accepted Answer

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

Exam 10: An Introduction to Multistep Mechanisms: Sn1 and E1 Reactions

Which is not true of a free energy diagram for an SN1 reaction?

Draw a detailed free energy diagram for the following SN1 reaction.Include and label the overall reactants,the overall products,the intermediate(s),the axis,and the transition state(s).

Draw the product(s)of the following E2 reaction.

If the following compound undergoes a 1,2-hydride shift,what is the most likely product?

Which is true of a free energy diagram for an E1 reaction?

Explain why the following carbocation rearrangement is not likely.

Which of the following steps could be found in an SN1 mechanism?

Which of the following will not undergo a 1,2-hydride shift?

The following mechanism has an unreasonable step.Indicate which step is unreasonable,and explain why.

Draw a detailed free energy diagram for the following E1 reaction.Include and label the overall reactants,the overall products,the intermediate(s),the axis,and the transition state(s).

Explain why the following carbocation rearrangement is not likely.

What is the product of the following E1 reaction?

Which of the following mechanism steps is not allowed?

For the following E2 reaction,what would happen to the rate if the concentration of A was doubled?

Which of the following could be the rate law for an SN1 reaction?

What is the most likely product of the following SN2 reaction?

SN2 reactions require ________ attack of the substrate by the nucleophile.

For the following SN1 reaction,what would happen to the rate if the concentration of B was quadrupled?

The following alkyl bromide can react with NaF via an SN1 mechanism.Draw the mechanism and product(s)of this reaction.Be sure to pay attention to stereochemistry,if applicable.

Which of the following would undergo a 1,2-methyl shift?

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 1: Conformational and Constitutional Isomers

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

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

Which is not true of a free energy diagram for an S_N1 reaction?

Draw a detailed free energy diagram for the following S_N1 reaction.Include and label the overall reactants,the overall products,the intermediate(s),the axis,and the transition state(s).

Which of the following steps could be found in an S_N1 mechanism?

Which of the following could be the rate law for an S_N1 reaction?

What is the most likely product of the following S_N2 reaction?

S_N2 reactions require ________ attack of the substrate by the nucleophile.

For the following S_N1 reaction,what would happen to the rate if the concentration of B was quadrupled?

The following alkyl bromide can react with NaF via an S_N1 mechanism.Draw the mechanism and product(s)of this reaction.Be sure to pay attention to stereochemistry,if applicable.