Question 1

What is the relationship between the structures shown below?

Accepted Answer

A) not isomers 
B) constitutional isomers 
C) conformational isomers 
D) configurational isomers 
E) enantiomers 
A) not isomers 
B) constitutional isomers 
C) conformational isomers 
D) configurational isomers 
E) enantiomers

Question 2

Which of the following compounds has an S configuration?

Accepted Answer

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

Question 3

Provide a careful structure for (2S,3R,4R)-2-bromo-4-methyl-3-hexanol.

Accepted Answer

The answer of Provide a careful structure for (2S,3R,4R)-2-bromo-4-methyl-3-hexanol....

Question 4

Is the molecule shown below chiral or achiral?

Accepted Answer

The answer of Is the molecule shown below chiral or...

Question 5

Label the molecule shown as chiral or achiral.

Accepted Answer

The answer of Label the molecule shown as chiral or...

Question 6

Which of the following cannot exhibit chirality?

Accepted Answer

A) 2, 3-dibromobutane 
B) 1, 3-dibromobutane 
C) 1, 2-dichlorobutane 
D) 1, 4-dibromobutane 
E) 1-bromo-2-chlorobutane 
A) 2, 3-dibromobutane 
B) 1, 3-dibromobutane 
C) 1, 2-dichlorobutane 
D) 1, 4-dibromobutane 
E) 1-bromo-2-chlorobutane

Question 7

Which of the following groups has the highest priority using the Cahn, Ingold, Prelog rules?

Accepted Answer

A)    
B)    
C) -OH 
D) -O-CH3 
E)    
A)    
B)    
C) -OH 
D) -O-CH3 
E)

Question 8

Provide the structure of (R)-4-octanol. Be careful to indicate proper stereochemistry.

Accepted Answer

The answer of Provide the structure of (R)-4-octanol. Be careful...

Question 9

Identify the pair of compounds.

Accepted Answer

A) identical 
B) conformational isomers 
C) constitutional isomers 
D) configurational isomers 
E) none of the above 
A) identical 
B) conformational isomers 
C) constitutional isomers 
D) configurational isomers 
E) none of the above

Question 10

How many asymmetric centers are present in the compound below?

Accepted Answer

The answer of How many asymmetric centers are present in...

Question 11

How many diastereomers exist for the compound below?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 7 
E) 8 
A) 2 
B) 4 
C) 6 
D) 7 
E) 8

Question 12

Which of the following terms best describes the pair of compounds shown: enantiomers, diastereomers, or the same compound?

Accepted Answer

The answer of Which of the following terms best describes...

Question 13

How many stereoisomers exist with the following basic connectivity? BrCH2CH(CH3)CH2CH3

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
E) 8 
A) 0 
B) 1 
C) 2 
D) 4 
E) 8

Question 14

Label each asymmetric center in the compound below as R or S.

Accepted Answer

The answer of Label each asymmetric center in the compound...

Question 15

The compound below contains an asymmetric center at nitrogen. Why can't individual stereoisomers of this compound be isolated at room temperature?

Accepted Answer

Nitrogen has a pair of nonbond

Question 16

Identify the following compounds as R or S.

Accepted Answer

A) R, S, R 
B) S, R, R 
C) S, S, S 
D) R, R, R 
E) S, S, R 
A) R, S, R 
B) S, R, R 
C) S, S, S 
D) R, R, R 
E) S, S, R

Question 17

Is the molecule shown chiral? Is it a meso compound?

Accepted Answer

The answer of Is the molecule shown chiral? Is it...

Question 18

Draw the structure of (2R,3S)-dichloropentane. Take particular care to indicate three-dimensional stereochemistry detail properly.

Accepted Answer

The answer of Draw the structure of (2R,3S)-dichloropentane. Take particular...

Question 19

Identify the compound(s)with asymmetric centers.

Accepted Answer

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

Question 20

Which of the following compounds is an enantiomer of the structure below?

Accepted Answer

A)    
B)    
C)    
D) A and B 
E) It does not have an enantiomer. 
A)    
B)    
C)    
D) A and B 
E) It does not have an enantiomer.

Exam 4: Isomers: the Arrangement of Atoms in Space

What is the relationship between the structures shown below?

Which of the following compounds has an S configuration?

Provide a careful structure for (2S,3R,4R)-2-bromo-4-methyl-3-hexanol.

Is the molecule shown below chiral or achiral?

Label the molecule shown as chiral or achiral.

Which of the following cannot exhibit chirality?

Which of the following groups has the highest priority using the Cahn, Ingold, Prelog rules?

Provide the structure of (R)-4-octanol. Be careful to indicate proper stereochemistry.

Identify the pair of compounds.

How many asymmetric centers are present in the compound below?

How many diastereomers exist for the compound below?

Which of the following terms best describes the pair of compounds shown: enantiomers, diastereomers, or the same compound?

How many stereoisomers exist with the following basic connectivity? BrCH2CH(CH3)CH2CH3

Label each asymmetric center in the compound below as R or S.

The compound below contains an asymmetric center at nitrogen. Why can't individual stereoisomers of this compound be isolated at room temperature?

Identify the following compounds as R or S.

Is the molecule shown chiral? Is it a meso compound?

Draw the structure of (2R,3S)-dichloropentane. Take particular care to indicate three-dimensional stereochemistry detail properly.

Identify the compound(s)with asymmetric centers.

Which of the following compounds is an enantiomer of the structure below?

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds

Alkenes Thermodynamics and Kinetics

Reactions of Alkenes

Reactions of Alkynes Introduction to Multistep Synthesis

Electron Delocalization, Resonance, and Aromaticity More About Molecular Orbital Theory

Substitution Reactions of Alkyl Halides

Elimination Reactions of Alkyl Halides Competition Between Substitution and Elimination

Reactions of Alcohols, Ethers, Epoxides, and Sulfur-Containing Compounds

Organometallic Compounds

Reactions of Alkanes, 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 Alpha Carbon of Carbonyl Compounds

Reactions of Benzene and Substituted Benzenes

More About Amines Heterocylic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Catalysis

The Organic Mechanisms of the Coenzymes

The Chemistry of Metabolism

Nucleosides, Nucleotides, and Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

How many stereoisomers exist with the following basic connectivity? BrCH₂CH(CH₃)CH₂CH₃