Question 1

Which combination of reagents would you use to prepare chlorobenzene (C6H5Cl)from benzene (C6H6)?

Accepted Answer

A) Cl2 and FeBr3 
B) HCl and H2SO4 
C) Cl2 and FeCl3 
D) HClO and FeCl3 
E) HCl and HNO3 
A) Cl2 and FeBr3 
B) HCl and H2SO4 
C) Cl2 and FeCl3 
D) HClO and FeCl3 
E) HCl and HNO3

Question 2

Match the following.

-electrophile

Accepted Answer

A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN- 
A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN-

Question 3

Match the following.

-nucleophile

Accepted Answer

A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN- 
A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN-

Question 4

Which of the following statements is TRUE?

Accepted Answer

A) Alkenes are as unreactive as alkanes. 
B) Electrophilic addition reactions proceed via either an E1 or E2 mechanism. 
C) The first step of an H-X electrophilic addition is the formation of a carbanion. 
D) Carbon-carbon double bonds are electron rich and are nucleophilic. 
E) During the addition of an H-X molecule, the H atom behaves as a nucleophile while the X atom behaves as an electrophile. 
A) Alkenes are as unreactive as alkanes. 
B) Electrophilic addition reactions proceed via either an E1 or E2 mechanism. 
C) The first step of an H-X electrophilic addition is the formation of a carbanion. 
D) Carbon-carbon double bonds are electron rich and are nucleophilic. 
E) During the addition of an H-X molecule, the H atom behaves as a nucleophile while the X atom behaves as an electrophile.

Question 5

Identify the organic product for the following reaction. CH3CH2COOH + CH3CH2CH2NH2

Accepted Answer

A) CH3CH2NHCH2CH2CH3 
B) CH3CH2CON(CH2CH2CH3)2 
C) CH3CH2CH2CONHCH2CH3 
D) CH3CH2CONHCH2CH2CH3 
E) CH3CH2N(CH2CH2CH3)2 
A) CH3CH2NHCH2CH2CH3 
B) CH3CH2CON(CH2CH2CH3)2 
C) CH3CH2CH2CONHCH2CH3 
D) CH3CH2CONHCH2CH2CH3 
E) CH3CH2N(CH2CH2CH3)2

Question 6

Which of the following represents the addition polymer formed from the compound below? CH2=CH-CH3

Accepted Answer

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

Question 7

What is a hemiketal?

Accepted Answer

A) A hemiketal, prepared from an alcohol and an aldehyde, is a compound that contains both OH and OR groups on the same carbon. 
B) Compounds prepared from ketones and alcohols and with OH and OR groups on the same carbon are known as hemiketals. 
C) A hemiketal is a product of acetyl group hydrolysis; it contains a COOH functional group. 
D) A hemiketal is formed from alcohols and acetic acid; a hemiacetal has both acetyl and OH groups on the same carbon atom. 
E) A hemiketal, formed from a ketone and an alcohol, has OH and keto groups on adjacent carbon atoms in its structure. 
A) A hemiketal, prepared from an alcohol and an aldehyde, is a compound that contains both OH and OR groups on the same carbon. 
B) Compounds prepared from ketones and alcohols and with OH and OR groups on the same carbon are known as hemiketals. 
C) A hemiketal is a product of acetyl group hydrolysis; it contains a COOH functional group. 
D) A hemiketal is formed from alcohols and acetic acid; a hemiacetal has both acetyl and OH groups on the same carbon atom. 
E) A hemiketal, formed from a ketone and an alcohol, has OH and keto groups on adjacent carbon atoms in its structure.

Question 8

Identify reagents A and B required for the following transformation of acyl groups:

Accepted Answer

A) A = (COCl)2; B = C2H5CHO 
B) A = (COCl)2; B = C2H5COOH 
C) A = HCl; B = C2H5COOH 
D) A = (COCl)2; B = C2H5-CH2OH 
E) A = HCl; B = C2H5CHO 
A) A = (COCl)2; B = C2H5CHO 
B) A = (COCl)2; B = C2H5COOH 
C) A = HCl; B = C2H5COOH 
D) A = (COCl)2; B = C2H5-CH2OH 
E) A = HCl; B = C2H5CHO

Question 9

Identify the major product in the following reaction:

Accepted Answer

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

Question 10

Arrange the following in order from least oxidized to most oxidized.

Accepted Answer

A) II < I < III 
B) III < I = II 
C) III < I < II 
D) I < II < III 
E) I < III < II 
A) II < I < III 
B) III < I = II 
C) III < I < II 
D) I < II < III 
E) I < III < II

Question 11

Which of the following is a compound that is acid anhydride?

Accepted Answer

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

Question 12

Determine the products of the following reaction: Benzene + Br2   ?

Accepted Answer

A) 1,2-dibromobenzene and H2 
B) 1,4-dibromobenzene and HBr 
C) ferrobenzene and H2 
D) perbromobenzene and HBr 
E) bromobenzene and HBr 
A) 1,2-dibromobenzene and H2 
B) 1,4-dibromobenzene and HBr 
C) ferrobenzene and H2 
D) perbromobenzene and HBr 
E) bromobenzene and HBr

Question 13

Match the following.

-reducing agent

Accepted Answer

A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN- 
A) substitution at saturated carbon atom, mechanism 
B) LiAlH4 
C) H+ 
D) step-growth 
E) elimination reaction mechanism
F)Jones reagent
G)hemiketal
H)methoxide
I)CN-

Question 14

Determine the products of the following reaction:

Accepted Answer

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

Question 15

Predict the products of the following reaction:

Accepted Answer

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

Question 16

Which of the following properties is typical for most polymers?

Accepted Answer

A) high reactivity 
B) durability 
C) softness 
D) soluble in water 
E) high toxicity 
A) high reactivity 
B) durability 
C) softness 
D) soluble in water 
E) high toxicity

Exam 21: Organic Chemistry II: Reactions

Which combination of reagents would you use to prepare chlorobenzene (C6H5Cl)from benzene (C6H6)?

Match the following. -electrophile

Match the following. -nucleophile

Which of the following statements is TRUE?

Identify the organic product for the following reaction. CH3CH2COOH + CH3CH2CH2NH2

Which of the following represents the addition polymer formed from the compound below? CH2=CH-CH3

What is a hemiketal?

Identify reagents A and B required for the following transformation of acyl groups:

Identify the major product in the following reaction:

Arrange the following in order from least oxidized to most oxidized.

Which of the following is a compound that is acid anhydride?

Determine the products of the following reaction: Benzene + Br2 ?

Match the following. -reducing agent

Determine the products of the following reaction:

Predict the products of the following reaction:

Which of the following properties is typical for most polymers?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Which combination of reagents would you use to prepare chlorobenzene (C₆H₅Cl)from benzene (C₆H₆)?

Identify the organic product for the following reaction. CH₃CH₂COOH + CH₃CH₂CH₂NH₂

Which of the following represents the addition polymer formed from the compound below? CH₂=CH-CH₃

Determine the products of the following reaction: Benzene + Br₂ ?