Question 1

If propene polymerization is initiated by the use of diacyl peroxide,this is an intermediate species formed early in the process.

Accepted Answer

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

Question 2

Which of the following would be the major product in the following reaction sequence?

Accepted Answer

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

Question 3

Which hydrogen would be abstracted first when mono-brominating with Br2 and light?

Accepted Answer

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

Question 4

Suggest a reasonable strategy for the synthesis of 1-bromo-2-methylcyclohexane from methylcyclohexane.

Accepted Answer

The answer of Suggest a reasonable strategy for the synthesis...

Question 5

Which free radical would be most stable?

Accepted Answer

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

Question 6

Which of the following compounds is not formed as a result of a chain-termination step in the free radical chlorination of propene?

Accepted Answer

A) CH2=CHCH2Cl 
B) Cl2 
C) CH2=CHCH2CH2CH=CH2 
D) HCl 
E) All can be formed in chain-termination steps. 
A) CH2=CHCH2Cl 
B) Cl2 
C) CH2=CHCH2CH2CH=CH2 
D) HCl 
E) All can be formed in chain-termination steps.

Question 7

Intermediates possessing unpaired electrons are called ___.

Accepted Answer

radicals o

Question 8

Which would be the best synthesis to produce the vicinal dibromide?

Accepted Answer

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

Question 9

What is the product for the following reaction sequence?

Accepted Answer

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

Question 10

What would be the major product of the following reaction sequence?

Accepted Answer

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

Question 11

What would be the major product of the following reaction sequence?

Accepted Answer

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

Question 12

Unsymmetrical alkenes give Markovnikov products through the most stable ___ intermediates and anti-Markovnikov products through the most stable ___ intermediates.

Accepted Answer

carbocatio

Question 13

According to the present explanation of the role of atmospheric chlorofluorocarbons in ozone depletion,it is this species which destroys,i.e.,reacts irreversibly with,ozone.

Accepted Answer

A) F 
B) Cl 
C) O 
D) ClO 
E) FO 
A) F 
B) Cl 
C) O 
D) ClO 
E) FO

Question 14

In a chain-initiating step,radicals are ___.

Accepted Answer

The answer of In a chain-initiating step,radicals are ___....

Question 15

What product(s)might be obtained via chain-termination step(s)during the reaction of 2-methylpropene with HBr in presence of peroxides?

Accepted Answer

The addition of HBr to 2-methylpropene t

Question 16

What would be the major product of the following reaction sequence?

Accepted Answer

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

Question 17

As the term "peroxide" is used in Chapter 10,it can refer to which structure(s)?

Accepted Answer

A) ROOR 
B) ROOH 
C)    
D) Two of these choices. 
E) Three of these choices. 
A) ROOR 
B) ROOH 
C)    
D) Two of these choices. 
E) Three of these choices.

Question 18

Free radical chlorination will produce but one monochloro derivative in the case of:

Accepted Answer

A) Propane 
B) Butane 
C) Isobutane 
D) Isopentane 
E) Neopentane 
A) Propane 
B) Butane 
C) Isobutane 
D) Isopentane 
E) Neopentane

Question 19

Which free radical would be least stable?

Accepted Answer

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

Question 20

What sequence of reactions could be used to prepare cis-1,2-cyclopentanediol from cyclopentane?

Accepted Answer

A) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)OsO4; (4)NaHSO3/H2O 
B) (1)t-BuOK/t-BuOH; (2)Cl2,h$v$; (3)NaOH/H2O 
C) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)H2O2 
D) (1)NaOH/H2O; (2)Br2; (3)NaNH2 (2 eq.)/liq.NH3; (4)KMnO4,NaOH/H2O,5 °C 
E) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)Hg(OAc)2,H2O (4)NaBH4,H3O+ 
A) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)OsO4; (4)NaHSO3/H2O 
B) (1)t-BuOK/t-BuOH; (2)Cl2,h$v$; (3)NaOH/H2O 
C) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)H2O2 
D) (1)NaOH/H2O; (2)Br2; (3)NaNH2 (2 eq.)/liq.NH3; (4)KMnO4,NaOH/H2O,5 °C 
E) (1)Cl2,h$v$; (2)t-BuOK/t-BuOH; (3)Hg(OAc)2,H2O (4)NaBH4,H3O+

Exam 10: Radical Reactions

If propene polymerization is initiated by the use of diacyl peroxide,this is an intermediate species formed early in the process.

Which of the following would be the major product in the following reaction sequence?

Which hydrogen would be abstracted first when mono-brominating with Br2 and light?

Suggest a reasonable strategy for the synthesis of 1-bromo-2-methylcyclohexane from methylcyclohexane.

Which free radical would be most stable?

Which of the following compounds is not formed as a result of a chain-termination step in the free radical chlorination of propene?

Intermediates possessing unpaired electrons are called ___.

Which would be the best synthesis to produce the vicinal dibromide?

What is the product for the following reaction sequence?

What would be the major product of the following reaction sequence?

What would be the major product of the following reaction sequence?

Unsymmetrical alkenes give Markovnikov products through the most stable ___ intermediates and anti-Markovnikov products through the most stable ___ intermediates.

According to the present explanation of the role of atmospheric chlorofluorocarbons in ozone depletion,it is this species which destroys,i.e.,reacts irreversibly with,ozone.

In a chain-initiating step,radicals are ___.

What product(s)might be obtained via chain-termination step(s)during the reaction of 2-methylpropene with HBr in presence of peroxides?

What would be the major product of the following reaction sequence?

As the term "peroxide" is used in Chapter 10,it can refer to which structure(s)?

Free radical chlorination will produce but one monochloro derivative in the case of:

Which free radical would be least stable?

What sequence of reactions could be used to prepare cis-1,2-cyclopentanediol from cyclopentane?

The Basics

Families of Carbon

Acids and Bases

Nomenclature and Conformations of Alkanes and Cycloalkanes

Stereochemistry

Nucleophilic Reactions

Alkenes and Alkynes I

Alkenes and Alkynes II

Nuclear Magnetic Resonance and Mass Spectrometry

Alcohols and Ethers

Alcohols From Carbonyl Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Reactions at the Α Carbon of Carbonyl Compounds

Condensation and Conjugate Addition Reactions of Carbonyl Compounds

Amines

Transition Metal Complexes

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

Which hydrogen would be abstracted first when mono-brominating with Br₂ and light?

Unsymmetrical alkenes give Markovnikov products through the most stable _ intermediates and anti-Markovnikov products through the most stable _ intermediates.