Question 1

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 2

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 3

What is the product for the following three-step 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 4

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 5

Carbocations are NOT intermediates in which one of the following reactions?

Accepted Answer

A)    
B)    
C)    
D)    
E) More than one of these choices. 
A)    
B)    
C)    
D)    
E) More than one of these choices.

Question 6

Which of the following gas-phase reactions is a possible chain-terminating step in the light-initiated chlorination of methane?

Accepted Answer

A) Cl-Cl $\to$ 2Cl· 
B) Cl· + CH4 $\to$ CH3· + H-Cl 
C) CH3· + CH3· $\to$ CH3-CH3 
D) CH3· + Cl-Cl $\to$ CH3Cl + Cl· 
E) More than one of these choices. 
A) Cl-Cl $\to$ 2Cl· 
B) Cl· + CH4 $\to$ CH3· + H-Cl 
C) CH3· + CH3· $\to$ CH3-CH3 
D) CH3· + Cl-Cl $\to$ CH3Cl + Cl· 
E) More than one of these choices.

Question 7

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 8

Mono-bromination of the following alkane,   ,(using Br2 with light)would give?

Accepted Answer

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

Question 9

An unsaturated product results from the reaction of cyclohexene with which of these?

Accepted Answer

A) Br2/CCl4 at 25 S1U1P1$\circ$S1S1P0C 
B) NBS/CCl4,ROOR 
C) HCl,ROOR 
D) HCl,no peroxides 
E) More than one of these choices. 
A) Br2/CCl4 at 25 S1U1P1$\circ$S1S1P0C 
B) NBS/CCl4,ROOR 
C) HCl,ROOR 
D) HCl,no peroxides 
E) More than one of these choices.

Question 10

What is the major product obtained from 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

Which hydrogen atom(s)of   is/are most susceptible to abstraction by free radicals?

Accepted Answer

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

Question 13

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 14

Briefly explain why when cyclopentene is treated with Br2 that trans-1,2-dibromocyclopentane is the major product at high temperatures but at low temperatures,racemic 3-bromocyclopentene is the major product.

Accepted Answer

Question 15

Suggest a strategy for converting 1-methylcyclohexene into 1-cyclohexylmethanol.

Accepted Answer

The answer of Suggest a strategy for converting 1-methylcyclohexene into...

Question 16

Tertiary carbon radicals are the most stable carbon radical that can be generated from hydrogen abstraction.

Accepted Answer

A) True 
 B)False

Question 17

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 18

Complete the following reaction sequence: indicate regiochemical/stereochemical details as relevant.

Accepted Answer

The answer of Complete the following reaction sequence: indicate regiochemical/stereochemical...

Question 19

Mono-bromination of the following alkane,   ,(using Br2 with light)would give?

Accepted Answer

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

Question 20

The free radical chlorination of 3-chloropentane forms a mixture of dichloropentanes which,on precise fractional distillation,affords these fractions:

Accepted Answer

A) 4 fractions,none optically active 
B) 4 fractions,2 optically active 
C) 7 fractions,4 optically active 
D) 7 fractions,6 optically active 
E) 7 fractions,all optically active 
A) 4 fractions,none optically active 
B) 4 fractions,2 optically active 
C) 7 fractions,4 optically active 
D) 7 fractions,6 optically active 
E) 7 fractions,all optically active

Exam 10: Radical Reactions

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

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

What is the product for the following three-step reaction sequence?

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

Carbocations are NOT intermediates in which one of the following reactions?

Which of the following gas-phase reactions is a possible chain-terminating step in the light-initiated chlorination of methane?

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

Mono-bromination of the following alkane, ,(using Br2 with light)would give?

An unsaturated product results from the reaction of cyclohexene with which of these?

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

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

Which hydrogen atom(s)of is/are most susceptible to abstraction by free radicals?

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

Briefly explain why when cyclopentene is treated with Br2 that trans-1,2-dibromocyclopentane is the major product at high temperatures but at low temperatures,racemic 3-bromocyclopentene is the major product.

Suggest a strategy for converting 1-methylcyclohexene into 1-cyclohexylmethanol.

Tertiary carbon radicals are the most stable carbon radical that can be generated from hydrogen abstraction.

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

Complete the following reaction sequence: indicate regiochemical/stereochemical details as relevant.

Mono-bromination of the following alkane, ,(using Br2 with light)would give?

The free radical chlorination of 3-chloropentane forms a mixture of dichloropentanes which,on precise fractional distillation,affords these fractions:

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

Mono-bromination of the following alkane, ,(using Br₂ with light)would give?

Briefly explain why when cyclopentene is treated with Br₂ that trans-1,2-dibromocyclopentane is the major product at high temperatures but at low temperatures,racemic 3-bromocyclopentene is the major product.

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

Mono-bromination of the following alkane, ,(using Br₂ with light)would give?