Question 1

Which of the following represents the energy levels of the molecular orbitals of benzene?

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

Which of the following ions is aromatic?

Accepted Answer

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

Question 4

Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response.  
-According to Hückel criteria, sulfathiazole is predicted to be ___________.

Accepted Answer

The answer of Answer the following questions concerning sulfathiazole below...

Question 5

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

Accepted Answer

The answer of What is the major organic product obtained...

Question 6

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word.
-This anion has______ $\pi$ electrons.

Accepted Answer

The answer of Consider the cycloheptatrienyl anion. Complete the following...

Question 7

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

Accepted Answer

The answer of What is the major organic product obtained...

Question 8

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

Accepted Answer

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

Question 9

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word.
-Consider the following two compounds.     A B
An ether solution containing these two substances was mixed with an aqueous 1 M NaOH solution. Substance _____ will be found in the basic layer.

Accepted Answer

The answer of Consider the cycloheptatrienyl anion. Complete the following...

Question 10

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

Accepted Answer

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

Question 11

What is the best choice of reagent to achieve the following reaction?

Accepted Answer

A) H2SO4 
B) NaOH, H2O 
C) K2Cr2O7, H2SO4 
D) LiAlH4 
A) H2SO4 
B) NaOH, H2O 
C) K2Cr2O7, H2SO4 
D) LiAlH4

Question 12

What are the relative positions of the substituents in the following structure?

Accepted Answer

A) anti 
B) meta 
C) ortho 
D) para 
A) anti 
B) meta 
C) ortho 
D) para

Question 13

Which orbitals contain the lone pairs on the nitrogen atoms labeled i and ii in the imidazole ring?

Accepted Answer

A) i = sp2;; ii = sp3 
B) i = p;; ii = sp3 
C) i = p;; ii = sp3 
D) i = p;; ii = sp2 
A) i = sp2;; ii = sp3 
B) i = p;; ii = sp3 
C) i = p;; ii = sp3 
D) i = p;; ii = sp2

Question 14

Consider the following general structure.   Positions 1,4 and 2,6 and 3,5 are termed para, ortho, and meta, respectively.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is true about [10]annulene?

Accepted Answer

A) [10]annulene is planar 
B) [10]annulene is nonaromatic 
C) [10]annulene undergoes addition reactions similar to simple alkenes 
D) [10]annulene has 10 pi electrons 
A) [10]annulene is planar 
B) [10]annulene is nonaromatic 
C) [10]annulene undergoes addition reactions similar to simple alkenes 
D) [10]annulene has 10 pi electrons

Question 16

What is the IUPAC name of the following compound?

Accepted Answer

4-bromo-2-

Question 17

What is the correct assignment of the names of the following heterocycles?

Accepted Answer

A) 1 = pyrrole; 2 = thiophene; 3 = pyridine 
B) 1 = thiophene; 2 = furan; 3 = pyrrole 
C) 1 = furan; 2 = pyrrole; 3 = thiophene 
D) 1 = furan; 2 = thiophene; 3 = pyrrole 
A) 1 = pyrrole; 2 = thiophene; 3 = pyridine 
B) 1 = thiophene; 2 = furan; 3 = pyrrole 
C) 1 = furan; 2 = pyrrole; 3 = thiophene 
D) 1 = furan; 2 = thiophene; 3 = pyrrole

Question 18

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word.
-According the Hückel criteria this anion would be classified as ______________.

Accepted Answer

The answer of Consider the cycloheptatrienyl anion. Complete the following...

Question 19

Consider the following structure.   The S1U1P11S1S1P0H NMR spectrum of [14]annulene at -60S1U1P1$\circ$S1S1P0C shows two peaks, one at 0 ppm and one at 7.6 ppm.
-The ratio of peak areas, respectively for the 7.6 ppm and 0 ppm, peaks would be_______.

Accepted Answer

The answer of Consider the following structure.   The...

Question 20

Consider the following structures,   A B
Structure A is more acidic than B.

Accepted Answer

A) True 
 B)False

Exam 21: Benzene and the Concept of Aromaticity

Which of the following represents the energy levels of the molecular orbitals of benzene?

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

Which of the following ions is aromatic?

Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response. -According to Hückel criteria, sulfathiazole is predicted to be ___________.

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

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -This anion has______ π\piπ electrons.

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

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

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

What is the best choice of reagent to achieve the following reaction?

What are the relative positions of the substituents in the following structure?

Which orbitals contain the lone pairs on the nitrogen atoms labeled i and ii in the imidazole ring?

Consider the following general structure. Positions 1,4 and 2,6 and 3,5 are termed para, ortho, and meta, respectively.

Which of the following is true about [10]annulene?

What is the IUPAC name of the following compound?

What is the correct assignment of the names of the following heterocycles?

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -According the Hückel criteria this anion would be classified as ______________.

Consider the following structure. The 1H NMR spectrum of [14]annulene at -60 ∘\circ∘ C shows two peaks, one at 0 ppm and one at 7.6 ppm. -The ratio of peak areas, respectively for the 7.6 ppm and 0 ppm, peaks would be_______.

Consider the following structures, A B Structure A is more acidic than B.

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -This anion has______ $\pi$ electrons.