Question 1

Which of the following molecules is aromatic?

Accepted Answer

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

Question 2

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

Although the compound has @#IMG-DLM& ele

Question 3

Which atomic orbital contributor has three areas of constructive interference?

Accepted Answer

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

Question 4

Which hydrogen has the lowest Pka?

Accepted Answer

A) HA 
B) HB 
C) HC 
D) HD 
E) HE 
A) HA 
B) HB 
C) HC 
D) HD 
E) HE

Question 5

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

The compound is cyclic,is plan

Question 6

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

The compound is cyclic,is plan

Question 7

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

Although the compound has 4n electrons (

Question 8

Which heterolysis step will occur fastest?

Accepted Answer

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

Question 9

Give the four requirements a molecule must have to be considered aromatic.

Accepted Answer

For a compound to be aromatic,

Question 10

How many electrons are in the following molecule's largest conjugated π system?

Accepted Answer

A) Two 
B) Four 
C) Six 
D) Eight 
E) Ten 
A) Two 
B) Four 
C) Six 
D) Eight 
E) Ten

Question 11

Assuming all of the following molecules are planar,which one can be labeled antiaromatic?

Accepted Answer

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

Question 12

How many nodes does the following atomic contributor have?

Accepted Answer

The answer of How many nodes does the following atomic...

Question 13

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

The following compound is cycl

Question 14

Which is more acidic,HA or HB? Explain.

Accepted Answer

H_B is more acidic.When H_B is rem

Question 15

Identify the areas of constructive interference for the following atomic contributor.

Accepted Answer

There are three area

Question 16

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Accepted Answer

The compound is cyclic,is plan

Question 17

Which atomic orbital contributor has the lowest energy?

Accepted Answer

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

Question 18

How many nodes does the following atomic contributor have?

Accepted Answer

The answer of How many nodes does the following atomic...

Question 19

Identify the areas of constructive interference for the following atomic contributor.

Accepted Answer

There are two areas

Question 20

Which molecular orbital has the lowest energy?

Accepted Answer

A) The highest bonding MO 
B) The highest antibonding MO 
C) The lowest bonding MO 
D) HOMO 
E) LUMO 
A) The highest bonding MO 
B) The highest antibonding MO 
C) The lowest bonding MO 
D) HOMO 
E) LUMO

Exam 16: Orbital Interactions 2: Extended Π Systems,conjugation,and Aromaticity

Which of the following molecules is aromatic?

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Which atomic orbital contributor has three areas of constructive interference?

Which hydrogen has the lowest Pka?

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Which heterolysis step will occur fastest?

Give the four requirements a molecule must have to be considered aromatic.

How many electrons are in the following molecule's largest conjugated π system?

Assuming all of the following molecules are planar,which one can be labeled antiaromatic?

How many nodes does the following atomic contributor have?

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Which is more acidic,HA or HB? Explain.

Identify the areas of constructive interference for the following atomic contributor.

Is the following compound aromatic,antiaromatic,or nonaromatic? Explain your answer.

Which atomic orbital contributor has the lowest energy?

How many nodes does the following atomic contributor have?

Identify the areas of constructive interference for the following atomic contributor.

Which molecular orbital has the lowest energy?

Atomic and Molecular Structure

Interchapter: Nomenclature 1-4

Interchapter 1molecular Orbital Theory and Chemical Reactions

Three-Dimensional Geometry,intermolecular Interactions,and Physical Properties

Orbital Interactions 1: Hybridization and Two-Center Molecular Orbitals

Isomerism 1: Conformational and Constitutional Isomers

Isomerism 2: Chirality,enantiomers,and Diastereomers

The Proton Transfer Reaction: an Introduction to Mechanisms,thermodynamics,and Charge Stability

An Overview of the Most Common Elementary Steps

An Introduction to Multistep Mechanisms: Sn1 and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 1: Competition Among Sn2,sn1,e2,and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 2: Reactions That Are Useful for Synthesis

Electrophilic Addition to Nonpolar Π Bonds 1: Addition of a Brønsted Acid

Electrophilic Addition to Nonpolar Π Bonds 2: Reactions Involving Cyclic Transition States

Organic Synthesis 1: Beginning Concepts

Structure Determination 1: Ultravioletvisible and Infrared Spectroscopies

Structure Determination 2: Nuclear Magnetic Resonance Spectroscopy and Mass Spectrometry

Nucleophilic Addition to Polar Π Bonds 1: Addition of Strong Nucleophiles

Nucleophilic Addition to Polar Π Bonds 2: Addition of Weak Nucleophiles and Acid and Base Catalysis

Organic Synthesis 2: Intermediate Topics in Synthesis Design,and Useful Reduction and Oxidation Reactions

Nucleophilic Additionelimination Reactions 1: the General Mechanism Involving Strong Nucleophiles

Nucleophilic Additionelimination Reactions 2: Weak Nucleophiles

Electrophilic Aromatic Substitution 1: Substitution on Benzene; Useful Accompanying Reactions

Electrophilic Aromatic Substitution 2: Substitution on Mono- and Disubstituted Benzene and Other Aromatic Rings

The Dielsalder Reaction and Other Pericyclic Reactions

Reactions Involving Free Radicals

Polymers

Filters

Which hydrogen has the lowest Pk_a?

Which is more acidic,H_A or H_B? Explain.