Question 1

Which of the following is the lowest energy conformer of the most stable isomer of 1,2,4-trimethylcyclohexane?

Accepted Answer

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

Question 2

What is the IUPAC name of the following compound?

Accepted Answer

1,1,3-trim

Question 3

Draw an energy diagram for the conformational analysis of propane.

Accepted Answer

The answer of Draw an energy diagram for the conformational...

Question 4

Complete the following combustion reaction, assuming that only CO2 and H2O are formed.

Accepted Answer

Question 5

Draw the least stable chair conformer of the following compound.

Accepted Answer

The answer of Draw the least stable chair conformer of...

Question 6

Draw the most stable chair conformer of the following compound.

Accepted Answer

The answer of Draw the most stable chair conformer of...

Question 7

Which of the following is the least stable chair conformer of the most stable isomer of 1,4-diethylcyclohexane?

Accepted Answer

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

Question 8

Which of the following is the lowest energy conformer of the most stable isomer of 1-ethyl-2,4-dimethylcyclohexane?

Accepted Answer

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

Question 9

What is the relationship between the following two compounds?

Accepted Answer

A)  constitutional isomers 
B)  identical compounds 
C)  completely different and not constitutional isomers 
A)  constitutional isomers 
B)  identical compounds 
C)  completely different and not constitutional isomers

Question 10

Which of the following is the highest energy conformer of the following compound looking down the indicated bond?

Accepted Answer

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

Question 11

What is the parent chain of the following compound?

Accepted Answer

The answer of What is the parent chain of the...

Question 12

Draw both chair conformers of the following compound.

Accepted Answer

The answer of Draw both chair conformers of the following...

Question 13

What is the parent chain of the following compound?

Accepted Answer

A)  hexane 
B)  heptane 
C)  octane 
D)  nonane 
A)  hexane 
B)  heptane 
C)  octane 
D)  nonane

Question 14

What is the relationship between the following two compounds?

Accepted Answer

A)  constitutional isomers 
B)  identical compounds 
C)  completely different and not constitutional isomers 
A)  constitutional isomers 
B)  identical compounds 
C)  completely different and not constitutional isomers

Question 15

What is the IUPAC name of the following compound?

Accepted Answer

2,7-dimeth

Question 16

Draw the other chair conformer of the following compound.

Accepted Answer

The answer of Draw the other chair conformer of the...

Question 17

What is the IUPAC name of the following compound?

Accepted Answer

1,1-dimeth

Question 18

Draw in all of the equatorial hydrogens on the cyclohexane chair conformation shown.

Accepted Answer

The answer of Draw in all of the equatorial hydrogens...

Question 19

What is the structure of 3-ethyl-2,4,6-trimethyloctane?

Accepted Answer

The answer of What is the structure of 3-ethyl-2,4,6-trimethyloctane?...

Question 20

Which of the following is the lowest energy conformer of the most stable isomer of 1,4-diethylcyclohexane?

Accepted Answer

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

Exam 4: Alkanes and Cycloalkanes

Which of the following is the lowest energy conformer of the most stable isomer of 1,2,4-trimethylcyclohexane?

What is the IUPAC name of the following compound?

Draw an energy diagram for the conformational analysis of propane.

Complete the following combustion reaction, assuming that only CO2 and H2O are formed.

Draw the least stable chair conformer of the following compound.

Draw the most stable chair conformer of the following compound.

Which of the following is the least stable chair conformer of the most stable isomer of 1,4-diethylcyclohexane?

Which of the following is the lowest energy conformer of the most stable isomer of 1-ethyl-2,4-dimethylcyclohexane?

What is the relationship between the following two compounds?

Which of the following is the highest energy conformer of the following compound looking down the indicated bond?

What is the parent chain of the following compound?

Draw both chair conformers of the following compound.

What is the parent chain of the following compound?

What is the relationship between the following two compounds?

What is the IUPAC name of the following compound?

Draw the other chair conformer of the following compound.

What is the IUPAC name of the following compound?

Draw in all of the equatorial hydrogens on the cyclohexane chair conformation shown.

What is the structure of 3-ethyl-2,4,6-trimethyloctane?

Which of the following is the lowest energy conformer of the most stable isomer of 1,4-diethylcyclohexane?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Complete the following combustion reaction, assuming that only CO₂ and H₂O are formed.