Question 1

How many signals does one expect in the proton decoupled 13C NMR spectrum of o-xylene?

Accepted Answer

A) 8 
B) 6 
C) 4 
D) 3 
E) 2 
A) 8 
B) 6 
C) 4 
D) 3 
E) 2 C

Question 2

Which of the following is the electrophile that attacks the aromatic ring during sulfonation?

Accepted Answer

A) HSO3+ 
B) SO2+ 
C) HSO3- 
D) H2SO4 
E) HSO4- 
A) HSO3+ 
B) SO2+ 
C) HSO3- 
D) H2SO4 
E) HSO4- A

Question 3

Which of the following is not a correct statement about the electrophilic substitution mechanism of benzene?

Accepted Answer

A) Benzene functions as a nucleophile. 
B) Formation of a carbocation intermediate is the rate-determining step. 
C) The carbocation intermediate contains an sp3 hybridized carbon in the ring. 
D) The addition product is a frequent minor product. 
E) Aromaticity is regained by loss of H+. 
A) Benzene functions as a nucleophile. 
B) Formation of a carbocation intermediate is the rate-determining step. 
C) The carbocation intermediate contains an sp3 hybridized carbon in the ring. 
D) The addition product is a frequent minor product. 
E) Aromaticity is regained by loss of H+. D

Question 4

Fill in the empty boxes.

Accepted Answer

The answer of Fill in the empty boxes.  ...

Question 5

Sulfonation can be reversed

Accepted Answer

A) upon treatment with Zn/HCl. 
B) upon treatment with chromic acid. 
C) upon treatment with NBS. 
D) in dilute acid at 100°C. 
E) upon treatment with NaBH4. 
A) upon treatment with Zn/HCl. 
B) upon treatment with chromic acid. 
C) upon treatment with NBS. 
D) in dilute acid at 100°C. 
E) upon treatment with NaBH4.

Question 6

What is the structure of phenol?

Accepted Answer

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

Question 7

Give the organic products from the following reaction.

Accepted Answer

The answer of Give the organic products from the following...

Question 8

Give the best product for the following reaction.

Accepted Answer

The answer of Give the best product for the following...

Question 9

Identify the best product for the following reaction.

Accepted Answer

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

Question 10

What is the proper name of the compound below?

Accepted Answer

A) 1-phenoxyethane 
B) ethyl phenyl ether 
C) m-butylhydroxybenzene 
D) o-butylhydroxybenzene 
E) m-butylphenol 
A) 1-phenoxyethane 
B) ethyl phenyl ether 
C) m-butylhydroxybenzene 
D) o-butylhydroxybenzene 
E) m-butylphenol

Question 11

What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3?

Accepted Answer

A) tert-butylbenzene 
B) isobutylbenzene 
C) n-butylbenzene 
D) chlorobenzene 
E) sec-butylbenzene 
A) tert-butylbenzene 
B) isobutylbenzene 
C) n-butylbenzene 
D) chlorobenzene 
E) sec-butylbenzene

Question 12

Identify the best product for the reaction.

Accepted Answer

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

Question 13

Provide the major organic product of the following.

Accepted Answer

The answer of Provide the major organic product of the...

Question 14

Identify the best product for the following reaction.

Accepted Answer

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

Question 15

What is the major organic product that results when benzene is treated with 1-chlorobutane and AlCl3?

Accepted Answer

A) ethylbenzene 
B) 1-propylbenzene 
C) butylbenzene 
D) sec-butylbenzene 
E) isobutylbenzene 
A) ethylbenzene 
B) 1-propylbenzene 
C) butylbenzene 
D) sec-butylbenzene 
E) isobutylbenzene

Question 16

What is the structure of styrene?

Accepted Answer

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

Question 17

Name the major organic product which results when 4-ethylbenzenesulfonic acid is heated in aqueous acid.

Accepted Answer

The answer of Name the major organic product which results...

Question 18

What is the major product of the following reaction?

Accepted Answer

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

Question 19

List the following compounds in order of decreasing acidity.

Accepted Answer

The answer of List the following compounds in order of...

Question 20

Propose a synthesis of the following compound benzene.

Accepted Answer

The answer of Propose a synthesis of the following compound...

Exam 18: Reactions of Benzene and Substituted Benzenes

How many signals does one expect in the proton decoupled 13C NMR spectrum of o-xylene?

Which of the following is the electrophile that attacks the aromatic ring during sulfonation?

Which of the following is not a correct statement about the electrophilic substitution mechanism of benzene?

Fill in the empty boxes.

Sulfonation can be reversed

What is the structure of phenol?

Give the organic products from the following reaction.

Give the best product for the following reaction.

Identify the best product for the following reaction.

What is the proper name of the compound below?

What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3?

Identify the best product for the reaction.

Provide the major organic product of the following.

Identify the best product for the following reaction.

What is the major organic product that results when benzene is treated with 1-chlorobutane and AlCl3?

What is the structure of styrene?

Name the major organic product which results when 4-ethylbenzenesulfonic acid is heated in aqueous acid.

What is the major product of the following reaction?

List the following compounds in order of decreasing acidity.

Propose a synthesis of the following compound benzene.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Isomers: the Arrangement of Atoms in Space

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Α-Carbon

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

How many signals does one expect in the proton decoupled ¹³C NMR spectrum of o-xylene?

What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl₃?

What is the major organic product that results when benzene is treated with 1-chlorobutane and AlCl₃?