Question 1

Which of the following is the major E2 product formed from the following alkyl halide?

Accepted Answer

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

Question 2

Which of the following is the dihalide that can be used to prepare the alkyne below?

Accepted Answer

A) I and II 
B) II and III 
C) I and III 
D) I,II,and III 
A) I and II 
B) II and III 
C) I and III 
D) I,II,and III D

Question 3

Which of the following is the most reactive substrate in an E2 reaction?

Accepted Answer

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

Question 4

What is the product of the following reaction?

Accepted Answer

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

Question 5

Which of the following statements about an E1 mechanism is not true?

Accepted Answer

A) It is a two-step process and has the same first step as an SN1 mechanism. 
B) It involves the formation of a carbocation from eliminating a good leaving group. 
C) A common competing reaction is rearrangement of a less stable carbocation to a more stable carbocation. 
D) The loss of a proton by the carbocation is a slow step. 
A) It is a two-step process and has the same first step as an SN1 mechanism. 
B) It involves the formation of a carbocation from eliminating a good leaving group. 
C) A common competing reaction is rearrangement of a less stable carbocation to a more stable carbocation. 
D) The loss of a proton by the carbocation is a slow step.

Question 6

What is (are)the product(s)of the following reaction?

Accepted Answer

A) I and II 
B) II and III 
C) I and III 
D) I,II,and III 
A) I and II 
B) II and III 
C) I and III 
D) I,II,and III

Question 7

What is the product of the following reaction?

Accepted Answer

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

Question 8

What is the major elimination product obtained from the following reaction?

Accepted Answer

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

Question 9

Which of the following statements about the mechanism of an E2 reaction is not true?

Accepted Answer

A) It is fastest with tertiary halides. 
B) It exhibits first-order kinetics. 
C) A better leaving group should make a faster reaction. 
D) All bonds are broken and formed in a single step. 
A) It is fastest with tertiary halides. 
B) It exhibits first-order kinetics. 
C) A better leaving group should make a faster reaction. 
D) All bonds are broken and formed in a single step.

Question 10

How many unique β carbons are found in the alkyl halide below?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 11

What is (are)the elimination product(s)of the following reaction?

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) II and III 
A) Only I 
B) Only II 
C) Only III 
D) II and III

Question 12

Which of the following statements about an E1 mechanism is not true?

Accepted Answer

A) The reaction is fastest with tertiary alkyl halides. 
B) A better leaving group makes the reaction rate increase. 
C) The reaction follows first-order kinetics. 
D) Stronger bases favor the E1 reaction. 
A) The reaction is fastest with tertiary alkyl halides. 
B) A better leaving group makes the reaction rate increase. 
C) The reaction follows first-order kinetics. 
D) Stronger bases favor the E1 reaction.

Question 13

What is the most likely mechanism for the reaction below?

Accepted Answer

A) SN1 
B) SN2 
C) E1 
D) E2 
A) SN1 
B) SN2 
C) E1 
D) E2

Question 14

Which of the following is the major elimination product of the following reaction?

Accepted Answer

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

Question 15

What is the major elimination product obtained from the following reaction?

Accepted Answer

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

Question 16

Which of the labeled protons in the compound below is most readily abstracted under E2 conditions?

Accepted Answer

A) Ha 
B) Hb 
C) Hc 
D) Hd 
A) Ha 
B) Hb 
C) Hc 
D) Hd

Question 17

What is (are)the elimination product(s)of the following reaction?

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) II and III 
A) Only I 
B) Only II 
C) Only III 
D) II and III

Question 18

Which alkyl halide(s)would give the following alkene as the only product in an elimination reaction?

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) I and II 
A) Only I 
B) Only II 
C) Only III 
D) I and II

Question 19

What is (are)the product(s)of the following reaction?

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) I and II 
A) Only I 
B) Only II 
C) Only III 
D) I and II

Question 20

What is the major elimination product obtained from the following reaction?

Accepted Answer

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

Exam 8: Alkyl Halides and Elimination Reactions

Which of the following is the major E2 product formed from the following alkyl halide?

Which of the following is the dihalide that can be used to prepare the alkyne below?

Which of the following is the most reactive substrate in an E2 reaction?

What is the product of the following reaction?

Which of the following statements about an E1 mechanism is not true?

What is (are)the product(s)of the following reaction?

What is the product of the following reaction?

What is the major elimination product obtained from the following reaction?

Which of the following statements about the mechanism of an E2 reaction is not true?

How many unique β carbons are found in the alkyl halide below?

What is (are)the elimination product(s)of the following reaction?

Which of the following statements about an E1 mechanism is not true?

What is the most likely mechanism for the reaction below?

Which of the following is the major elimination product of the following reaction?

What is the major elimination product obtained from the following reaction?

Which of the labeled protons in the compound below is most readily abstracted under E2 conditions?

What is (are)the elimination product(s)of the following reaction?

Which alkyl halide(s)would give the following alkene as the only product in an elimination reaction?

What is (are)the product(s)of the following reaction?

What is the major elimination product obtained from the following reaction?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Synthetic Polymers

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters