Question 1

Propose an efficient synthesis of 1-iodo-2-methylpropane from 2-methylpropene.

Accepted Answer

The answer of Propose an efficient synthesis of 1-iodo-2-methylpropane from...

Question 2

Which of the following steps is thermodynamically unfavorable at all temperatures?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 3

Propose an efficient synthesis of 2-methylpropene from 2-methylpropane.

Accepted Answer

The answer of Propose an efficient synthesis of 2-methylpropene from...

Question 4

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

Accepted Answer

The answer of Predict the major product(s) of the following...

Question 5

Which of the following is an example of termination?

Accepted Answer

A)   
B)   
C)   
D)   
E)   
A)   
B)   
C)   
D)   
E)

Question 6

Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

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

Accepted Answer

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

Question 8

Predict the major product(s) of the following reaction:

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 9

Use correct arrow formalism to show the mechanism of the following radical process:

Accepted Answer

The answer of Use correct arrow formalism to show the...

Question 10

Which of the following would you expect to function as an initiator at the lowest temperature?

Accepted Answer

A)    
B)  Cl2 
C)    
D)    
A)    
B)  Cl2 
C)    
D)

Question 11

Which of the labeled C-H bonds is the weakest?

Accepted Answer

A)  C-Ha 
B)  C-Hb 
C)  C-Hc 
D)  C-Hd 
E)  C-He 
A)  C-Ha 
B)  C-Hb 
C)  C-Hc 
D)  C-Hd 
E)  C-He

Question 12

Which of the following is expected to be a major product for the reaction shown below?

Accepted Answer

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

Question 13

Which term best describes the process shown below?

Accepted Answer

A)  initiation 
B)  propagation 
C)  termination 
D)  elimination 
E)  inhibition 
A)  initiation 
B)  propagation 
C)  termination 
D)  elimination 
E)  inhibition

Question 14

Which term most accurately describes the process shown below?

Accepted Answer

A)  coupling 
B)  elimination 
C)  halogen abstraction 
D)  hydrogen abstraction 
E)  homolytic cleavage 
A)  coupling 
B)  elimination 
C)  halogen abstraction 
D)  hydrogen abstraction 
E)  homolytic cleavage

Question 15

Predict the major product obtained upon radical bromination of t-butylcyclohexane.

Accepted Answer

A)  1-bromo-1-tert-butylcyclohexane 
B)  2-bromo-1-tert-butylcyclohexane 
C)  3-bromo-1-tert-butylcyclohexane 
D)  4-bromo-1-tert-butylcyclohexane 
E)  (1-bromo-1,1-dimethyl)ethylcyclohexane 
A)  1-bromo-1-tert-butylcyclohexane 
B)  2-bromo-1-tert-butylcyclohexane 
C)  3-bromo-1-tert-butylcyclohexane 
D)  4-bromo-1-tert-butylcyclohexane 
E)  (1-bromo-1,1-dimethyl)ethylcyclohexane

Question 16

Draw the major product(s) of the following reaction. Is the product optically active? Explain.

Accepted Answer

@#IMG-DLM& The product is not

Question 17

Draw the product of coupling of the following radicals.

Accepted Answer

The answer of Draw the product of coupling of the...

Question 18

Predict the product(s) of the following reaction:

Accepted Answer

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

Question 19

Azobisisobutyronitrile (AIBN) is commonly used as a radical initiator. Use correct arrow formalism to show this process.

Accepted Answer

The answer of Azobisisobutyronitrile (AIBN) is commonly used as a...

Question 20

Which of the following correctly describes the nature of the transition state of the rate-determining step of the free-radical bromination of methane?

Accepted Answer

A)  the transition state resembles the reactants more than the products 
B)  the transition state resembles the products more than the reactants 
C)  the transition state equally resembles products and reactants 
A)  the transition state resembles the reactants more than the products 
B)  the transition state resembles the products more than the reactants 
C)  the transition state equally resembles products and reactants

Exam 11: Radical Reactions

Propose an efficient synthesis of 1-iodo-2-methylpropane from 2-methylpropene.

Which of the following steps is thermodynamically unfavorable at all temperatures?

Propose an efficient synthesis of 2-methylpropene from 2-methylpropane.

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

Which of the following is an example of termination?

Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light?

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

Predict the major product(s) of the following reaction:

Use correct arrow formalism to show the mechanism of the following radical process:

Which of the following would you expect to function as an initiator at the lowest temperature?

Which of the labeled C-H bonds is the weakest?

Which of the following is expected to be a major product for the reaction shown below?

Which term best describes the process shown below?

Which term most accurately describes the process shown below?

Predict the major product obtained upon radical bromination of t-butylcyclohexane.

Draw the major product(s) of the following reaction. Is the product optically active? Explain.

Draw the product of coupling of the following radicals.

Predict the product(s) of the following reaction:

Azobisisobutyronitrile (AIBN) is commonly used as a radical initiator. Use correct arrow formalism to show this process.

Which of the following correctly describes the nature of the transition state of the rate-determining step of the free-radical bromination of methane?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Substitution Reactions

Alkenes: Structure and Preparation Via Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

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