Question 1

Hydrogen atom abstraction from which position would yield the most stable free radical intermediate during the reaction of bromine with 2,2,3-trimethylpentane?

Accepted Answer

A) C1 
B) C2 
C) C3 
D) C4 
E) C5 
A) C1 
B) C2 
C) C3 
D) C4 
E) C5

Question 2

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 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

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 5

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 6

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 7

In a competition reaction,equimolar amounts of five alkanes compete for a deficiency of chlorine at 300 °C.The greatest amount of reaction would occur in the case of which of these alkanes?

Accepted Answer

A) Ethane 
B) Propane 
C) Butane 
D) Isobutane 
E) Pentane 
A) Ethane 
B) Propane 
C) Butane 
D) Isobutane 
E) Pentane

Question 8

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 9

A covalent bond breaking so that each of the resulting intermediates bears a single unpaired electron is an example of ___ bond cleavage.

Accepted Answer

The answer of A covalent bond breaking so that each...

Question 10

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 11

Determine the identification of compounds W,X,Y and Z using the structural information shown below.

Accepted Answer

The answer of Determine the identification of compounds W,X,Y and...

Question 12

Which free radical would be most stable?

Accepted Answer

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

Question 13

Draw bond-line formulas of all monochloro derivatives that might be formed when 2,2,4-trimethylpentane is allowed to react with Cl2 under UV irradiation.For each structure,indicate,with an asterisk,any stereocenters that might be present.

Accepted Answer

Question 14

While the electrophilic addition of HBr to an alkene is ionic and follows Markovnikov's rule,if the reaction is done in the presence of peroxides it becomes a ___ reaction and is ___ in regiochemistry.

Accepted Answer

radical or

Question 15

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 16

Which free radical would be most stable?

Accepted Answer

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

Question 17

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 18

The p orbital of a methyl radical carbon,CH3·,contains how many electrons?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 0 
A) 1 
B) 2 
C) 3 
D) 4 
E) 0

Question 19

How many different monochlorobutanes (including stereoisomers)are formed in the free radical chlorination of butane?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 20

The reaction between cyclopropane and one equivalent of bromine when exposed to light would yield how many different compounds (including stereoisomers)?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Exam 10: Radical Reactions

Hydrogen atom abstraction from which position would yield the most stable free radical intermediate during the reaction of bromine with 2,2,3-trimethylpentane?

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

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

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

What is the product for the following reaction sequence?

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

In a competition reaction,equimolar amounts of five alkanes compete for a deficiency of chlorine at 300 °C.The greatest amount of reaction would occur in the case of which of these alkanes?

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

A covalent bond breaking so that each of the resulting intermediates bears a single unpaired electron is an example of ___ bond cleavage.

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

Determine the identification of compounds W,X,Y and Z using the structural information shown below.

Which free radical would be most stable?

Draw bond-line formulas of all monochloro derivatives that might be formed when 2,2,4-trimethylpentane is allowed to react with Cl2 under UV irradiation.For each structure,indicate,with an asterisk,any stereocenters that might be present.

While the electrophilic addition of HBr to an alkene is ionic and follows Markovnikov's rule,if the reaction is done in the presence of peroxides it becomes a ___ reaction and is ___ in regiochemistry.

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

Which free radical would be most stable?

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

The p orbital of a methyl radical carbon,CH3·,contains how many electrons?

How many different monochlorobutanes (including stereoisomers)are formed in the free radical chlorination of butane?

The reaction between cyclopropane and one equivalent of bromine when exposed to light would yield how many different compounds (including stereoisomers)?

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?

Draw bond-line formulas of all monochloro derivatives that might be formed when 2,2,4-trimethylpentane is allowed to react with Cl₂ under UV irradiation.For each structure,indicate,with an asterisk,any stereocenters that might be present.

While the electrophilic addition of HBr to an alkene is ionic and follows Markovnikov's rule,if the reaction is done in the presence of peroxides it becomes a _ reaction and is _ in regiochemistry.

The p orbital of a methyl radical carbon,CH₃·,contains how many electrons?