Question 1

What is the major product of the following reaction?

Accepted Answer

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

Question 2

Which is the best (strongest)nucleophile for an SN2 reaction?

Accepted Answer

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

Question 3

Show how the following alkyne can be synthesized from an acetylide ion and an alkyl halide.

Accepted Answer

The answer of Show how the following alkyne can be...

Question 4

Which of the following leaving groups will provide the fastest rate of reaction 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 5

List all the reaction mechanisms that are possible with a tertiary alkyl halide.Choose from SN1, E1,SN2, and E2 mechanisms.

Accepted Answer

Question 6

Which attacking species would favor an E2 reaction over an SN2 reaction?

Accepted Answer

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

Question 7

Which of the following halides would undergo an SN2 reaction at the fastest rate?

Accepted Answer

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

Question 8

Identify the reagent that best completes the following reaction.

Accepted Answer

A) NaOH 
B) LDA 
C) NaNH2 
D) H3PO4 
E) HBr 
A) NaOH 
B) LDA 
C) NaNH2 
D) H3PO4 
E) HBr

Question 9

For the following set of reaction conditions,use the table below to identify which mechanism is favored by each factor,and determine which mechanism is favored overall.Also supply the expected product.

Accepted Answer

Favored me

Question 10

Which solvent would be best for an SN1 reaction?

Accepted Answer

A) Acetone 
B) DMSO 
C) Hexane 
D) Ethanol 
E) Ethyl acetate 
A) Acetone 
B) DMSO 
C) Hexane 
D) Ethanol 
E) Ethyl acetate

Question 11

Rank the following leaving groups' ability to leave in an E1 reaction from worst leaving group to best leaving group.

Accepted Answer

I < V &

Question 12

Supply a base that would favor the following elimination product over a substitution product.

Accepted Answer

Possible a

Question 13

Identify the reagent(s)that will best complete the following reaction.

Accepted Answer

A) HBr, H2SO4 
B) Br2 
C) KBr 
D) NaBr 
E) Both KBr and NaBr will complete the reaction. 
A) HBr, H2SO4 
B) Br2 
C) KBr 
D) NaBr 
E) Both KBr and NaBr will complete the reaction.

Question 14

Which reaction mechanism(s)will be favored by a high concentration of Br F1F1F1S1F1F1F10?

Accepted Answer

A) SN1 
B) SN2 
C) E1 
D) E2 
E) A mixture of E1 and SN1 
A) SN1 
B) SN2 
C) E1 
D) E2 
E) A mixture of E1 and SN1

Question 15

What reagent(s)can be used to successfully complete the following reaction?

Accepted Answer

The answer of What reagent(s)can be used to successfully complete...

Question 16

Identify the major product(s)of the following reaction.

Accepted Answer

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

Question 17

Which reaction mechanism(s)would be favored by the following conditions?

Accepted Answer

Both S_N1 and E1 are f

Question 18

Which mechanism(s)would be favored under the following reaction conditions?

Accepted Answer

A) SN1 
B) SN2 
C) E1 
D) E2 
E) A mixture of SN1 and E1 
A) SN1 
B) SN2 
C) E1 
D) E2 
E) A mixture of SN1 and E1

Question 19

Rank the following attacking species in order of slowest reacting to fastest reacting in an E2 reaction.

Accepted Answer

II < V < I

Question 20

Using the two reactants shown below,draw the mechanisms and products for reactions based on four different mechanisms: SN1,E1,SN2,and E2.

Accepted Answer

Exam 11: Nucleophilic Substitution and Elimination Reactions 1: Competition Among Sn2,sn1,e2,and E1 Reactions

What is the major product of the following reaction?

Which is the best (strongest)nucleophile for an SN2 reaction?

Show how the following alkyne can be synthesized from an acetylide ion and an alkyl halide.

Which of the following leaving groups will provide the fastest rate of reaction in an SN1 mechanism?

List all the reaction mechanisms that are possible with a tertiary alkyl halide.Choose from SN1, E1,SN2, and E2 mechanisms.

Which attacking species would favor an E2 reaction over an SN2 reaction?

Which of the following halides would undergo an SN2 reaction at the fastest rate?

Identify the reagent that best completes the following reaction.

For the following set of reaction conditions,use the table below to identify which mechanism is favored by each factor,and determine which mechanism is favored overall.Also supply the expected product.

Which solvent would be best for an SN1 reaction?

Rank the following leaving groups' ability to leave in an E1 reaction from worst leaving group to best leaving group.

Supply a base that would favor the following elimination product over a substitution product.

Identify the reagent(s)that will best complete the following reaction.

Which reaction mechanism(s)will be favored by a high concentration of Br ?

What reagent(s)can be used to successfully complete the following reaction?

Identify the major product(s)of the following reaction.

Which reaction mechanism(s)would be favored by the following conditions?

Which mechanism(s)would be favored under the following reaction conditions?

Rank the following attacking species in order of slowest reacting to fastest reacting in an E2 reaction.

Using the two reactants shown below,draw the mechanisms and products for reactions based on four different mechanisms: SN1,E1,SN2,and E2.

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

An Introduction to Multistep Mechanisms: Sn1 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 the best (strongest)nucleophile for an S_N2 reaction?

Which of the following leaving groups will provide the fastest rate of reaction in an S_N1 mechanism?

List all the reaction mechanisms that are possible with a tertiary alkyl halide.Choose from S_N1,E1_,S_N2,andE2 mechanisms.

Which attacking species would favor an E2 reaction over an S_N2 reaction?

Which of the following halides would undergo an S_N2 reaction at the fastest rate?

Which solvent would be best for an S_N1 reaction?

Which reaction mechanism(s)will be favored by a high concentration of Br ^?

Using the two reactants shown below,draw the mechanisms and products for reactions based on four different mechanisms: S_N1,E1,S_N2,and E2.