Question 1

What is the most likely mechanism for the following reaction?

Accepted Answer

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

Question 2

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 3

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 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

What is (are)the starting material(s)in the reaction 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 6

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 7

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 8

Which of the following statements about the mechanism of an E2 reaction is true?

Accepted Answer

A) All bonds are broken and formed in multiple steps. 
B) The reaction is not concerted. 
C) Entropy favors the reactants of an E2 reaction. 
D) Entropy favors the products of an E2 reaction. 
A) All bonds are broken and formed in multiple steps. 
B) The reaction is not concerted. 
C) Entropy favors the reactants of an E2 reaction. 
D) Entropy favors the products of an E2 reaction.

Question 9

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 10

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 11

Which of the following is the most stable alkene?

Accepted Answer

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

Question 12

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 13

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 14

Which of the following alkyl chloride affords alkene A exclusively under E2 reaction condition?

Accepted Answer

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

Question 15

Classify each alkene in vitamin D3 labeled I,II,III by the number of carbon substituents bonded to the double bond.

Accepted Answer

A) I = Disubstituted; II = trisubstituted; III = trisubstituted 
B) I = Monosubstituted; II = disubstituted; III = trisubstituted 
C) I = Disubstituted; II = disubstituted; III = trisubstituted 
D) I = Disubstituted; II = trisubstituted; III = disubstituted 
A) I = Disubstituted; II = trisubstituted; III = trisubstituted 
B) I = Monosubstituted; II = disubstituted; III = trisubstituted 
C) I = Disubstituted; II = disubstituted; III = trisubstituted 
D) I = Disubstituted; II = trisubstituted; III = disubstituted

Question 16

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 17

Which of the following is most likely to react as a nucleophile rather than a base?

Accepted Answer

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

Question 18

Which of the following is most likely to react as a base rather than a nucleophile?

Accepted Answer

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

Question 19

What is the major elimination product in the reaction of 1-bromobutane with potassium tert-butoxide in tert-butanol?

Accepted Answer

A) cis-2-Butene 
B) 1-Butene 
C) trans-2-Butene 
D) Butanol 
A) cis-2-Butene 
B) 1-Butene 
C) trans-2-Butene 
D) Butanol

Question 20

Which of the following alkyl halides would afford the indicated product upon reaction with sodium methoxide?

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

What is the most likely mechanism for the following reaction?

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

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

What is the product of the following reaction?

What is (are)the starting material(s)in the reaction below?

What is the most likely mechanism for the reaction below?

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

Which of the following statements about the mechanism of an E2 reaction is true?

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

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

Which of the following is the most stable alkene?

Which of the following alkenes is the most stable?

What is the major product of the following reaction?

Which of the following alkyl chloride affords alkene A exclusively under E2 reaction condition?

Classify each alkene in vitamin D3 labeled I,II,III by the number of carbon substituents bonded to the double bond.

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

Which of the following is most likely to react as a nucleophile rather than a base?

Which of the following is most likely to react as a base rather than a nucleophile?

What is the major elimination product in the reaction of 1-bromobutane with potassium tert-butoxide in tert-butanol?

Which of the following alkyl halides would afford the indicated product upon reaction with sodium methoxide?

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

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

Classify each alkene in vitamin D₃ labeled I,II,III by the number of carbon substituents bonded to the double bond.