Question 1

Which 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

How many different E2 products can form from the dehydrohalogenation of 2-bromobutane?

Accepted Answer

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

Question 3

Select the elimination product(s)formed by treating the indicated alkyl halide with a base.

Accepted Answer

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

Question 4

What is the product 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 5

Which of the following is the least reactive substrate 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 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 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

Which of the following alkyl halide reacts the fastest in an E2 reaction?

Accepted Answer

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

Question 9

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 10

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.

Question 11

Which of the following is the most reactive substrate in an E1 reaction?

Accepted Answer

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

Question 12

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

Exam 8: Alkyl Halides and Elimination Reactions

Which is the most likely mechanism for the following reaction?

How many different E2 products can form from the dehydrohalogenation of 2-bromobutane?

Select the elimination product(s)formed by treating the indicated alkyl halide with a base.

What is the product of the following reaction?

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

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

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

Which of the following alkyl halide reacts the fastest in an E2 reaction?

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

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

Which of the following is the most reactive substrate in an E1 reaction?

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

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

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