Question 1

How many peaks are in the proton spin decoupled 13C NMR spectrum of 1,3,5-trinitrobenzene?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  6 
A)  1 
B)  2 
C)  3 
D)  4 
E)  6

Question 2

Which of the following is the same as the tropylium ion?

Accepted Answer

A)  cycloheptatrienyl cation 
B)  cycloheptatrienyl anion 
C)  cyclopentadienyl cation 
D)  cyclopentadienyl anion 
E)  cyclopropenyl anion 
A)  cycloheptatrienyl cation 
B)  cycloheptatrienyl anion 
C)  cyclopentadienyl cation 
D)  cyclopentadienyl anion 
E)  cyclopropenyl anion

Question 3

Which is more basic, pyridine or pyrrole? Explain.

Accepted Answer

Pyrrole is a much weaker base

Question 4

Provide a diagram which depicts the relative energies of the π molecular orbitals of benzene. Show which molecular orbitals are filled in benzene's ground state.

Accepted Answer

The answer of Provide a diagram which depicts the relative...

Question 5

Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify the compound below as aromatic, antiaromatic,...

Question 6

In the molecular orbital representation of benzene, how many π molecular orbitals are present?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
E)  8 
A)  1 
B)  2 
C)  4 
D)  6 
E)  8

Question 7

Classify naphthalene as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify naphthalene as aromatic, antiaromatic, or nonaromatic....

Question 8

Which sequence correctly ranks the following dienes in order of increasing reactivity in the D-A reaction?

Accepted Answer

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

How many peaks are in the proton spin decoupled ¹³C NMR spectrum of 1,3,5-trinitrobenzene?

Which of the following is the same as the tropylium ion?

Which is more basic, pyridine or pyrrole? Explain.

Provide a diagram which depicts the relative energies of the π molecular orbitals of benzene. Show which molecular orbitals are filled in benzene's ground state.

Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

In the molecular orbital representation of benzene, how many π molecular orbitals are present?

Classify naphthalene as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Which sequence correctly ranks the following dienes in order of increasing reactivity in the D-A reaction?

Introduction and Review

Structure and Properties of Organic Molecules

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides: Nucleophilic Substitution and Elimination

Structure and Synthesis of Alkenes

Reactions of Alkenes

Alkynes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Exam 16: Aromatic Compounds

How many peaks are in the proton spin decoupled 13C NMR spectrum of 1,3,5-trinitrobenzene?

Which of the following is the same as the tropylium ion?

Which is more basic, pyridine or pyrrole? Explain.

Provide a diagram which depicts the relative energies of the π molecular orbitals of benzene. Show which molecular orbitals are filled in benzene's ground state.

Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

In the molecular orbital representation of benzene, how many π molecular orbitals are present?

Classify naphthalene as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Which sequence correctly ranks the following dienes in order of increasing reactivity in the D-A reaction?

Introduction and Review

Structure and Properties of Organic Molecules

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides: Nucleophilic Substitution and Elimination

Structure and Synthesis of Alkenes

Reactions of Alkenes

Alkynes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

How many peaks are in the proton spin decoupled ¹³C NMR spectrum of 1,3,5-trinitrobenzene?