Question 1

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 2

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 3

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

Question 4

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

Question 5

Which of the following alkyl halides will afford the product below as the major product in an E2 reaction?

Accepted Answer

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

Question 6

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 7

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 8

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 9

Which of the following represents the rate law for an E2 reaction?

Accepted Answer

A) Rate = k[alkyl halide] 
B) Rate = k[alkyl halide][base] 
C) Rate = k[alkyl halide]2 
D) Rate = k[base]2 
A) Rate = k[alkyl halide] 
B) Rate = k[alkyl halide][base] 
C) Rate = k[alkyl halide]2 
D) Rate = k[base]2

Question 10

What is the major product and likely mechanism for the following reaction?

Accepted Answer

A) I,E1 
B) I,E2 
C) II,E1 
D) II,E2 
A) I,E1 
B) I,E2 
C) II,E1 
D) II,E2

Question 11

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

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

Consider the following E2 reaction.What rate equation would be observed for this reaction?

Accepted Answer

A) Rate = k[CH3CH2CH2Br] 
B) Rate = k[CH3CH2CH2Br][KOC(CH3)3] 
C) Rate = k[CH3CH2CH2Br][KOC(CH3)3]2 
D) Rate = k[CH3CH2CH2Br]2[KOC(CH3)3] 
A) Rate = k[CH3CH2CH2Br] 
B) Rate = k[CH3CH2CH2Br][KOC(CH3)3] 
C) Rate = k[CH3CH2CH2Br][KOC(CH3)3]2 
D) Rate = k[CH3CH2CH2Br]2[KOC(CH3)3]

Question 13

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 14

What is the major 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 (are)the 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 16

Which of the following alkyl halide would react the fastest with -OH in E2 reaction?

Accepted Answer

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

Question 17

Which of the following alkenes is the most stable?

Accepted Answer

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

Question 18

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 19

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 20

Which of the following statements about an E1 mechanism is true?

Accepted Answer

A) The identity of the leaving group affects the rate of reaction. 
B) The reaction follows second-order kinetics. 
C) The reaction is slowest with tertiary substrates. 
D) Polar aprotic solvents favor the E1 mechanism. 
A) The identity of the leaving group affects the rate of reaction. 
B) The reaction follows second-order kinetics. 
C) The reaction is slowest with tertiary substrates. 
D) Polar aprotic solvents favor the E1 mechanism.

Exam 8: Alkyl Halides and Elimination Reactions

What is the product of the following reaction?

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

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 alkyl halides will afford the product below as the major product in an E2 reaction?

What is the product of the following reaction?

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

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

Which of the following represents the rate law for an E2 reaction?

What is the major product and likely mechanism for the following reaction?

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

Consider the following E2 reaction.What rate equation would be observed for this reaction?

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

What is the major product of the following reaction?

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

Which of the following alkyl halide would react the fastest with -OH in E2 reaction?

Which of the following alkenes is the most stable?

What is the most likely mechanism for the reaction below?

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

Which of the following statements about an E1 mechanism is true?

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

Molecular Ion Peaks and Fragmentation Patterns

Analyzing Molecular Motion and Infrared Spectroscopy

Organic Spectroscopy Concepts

Filters

Which of the following alkyl halide would react the fastest with ^-OH in E2 reaction?