Question 1

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 2

Which of the following compounds has an asymmetric center?

Accepted Answer

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

Question 3

Label each asymmetric center as R or S.

Accepted Answer

The answer of Label each asymmetric center as R or...

Question 4

Identify all meso compounds.

Accepted Answer

A) B and D,A and C 
B) A and C 
C) B and D 
D) A and B,A and D,B and C,C and D 
E) B and D,A and B,A and D,B and C,C and D 
A) B and D,A and C 
B) A and C 
C) B and D 
D) A and B,A and D,B and C,C and D 
E) B and D,A and B,A and D,B and C,C and D

Question 5

What is the relationship between the compounds below?

Accepted Answer

A) constitutional isomers 
B) identical compounds 
C) enantiomers 
D) diastereomers 
E) meso compounds 
A) constitutional isomers 
B) identical compounds 
C) enantiomers 
D) diastereomers 
E) meso compounds

Question 6

A and B are stereoisomers.They are nonsuperimposable and are mirror images of one another.Which of the following best describes the relationship between A and B?

Accepted Answer

A) structural isomers 
B) enantiomers 
C) conformational isomers 
D) diastereomers 
E) constitutional isomers 
A) structural isomers 
B) enantiomers 
C) conformational isomers 
D) diastereomers 
E) constitutional isomers

Question 7

What is the relationship between the structures shown below?

Accepted Answer

A) diastereomers 
B) constitutional isomers 
C) conformational isomers 
D) configurational isomers 
E) enantiomers 
A) diastereomers 
B) constitutional isomers 
C) conformational isomers 
D) configurational isomers 
E) enantiomers

Question 8

Draw the structure of a meso form of 1,3-dichlorocyclopentane.Take particular care to indicate three-dimensional stereochemistry detail properly.

Accepted Answer

The answer of Draw the structure of a meso form...

Question 9

The specific rotation of (R)-(+)-glyceraldehyde is +8.7°.If a mixture of glyceraldehydes enantiomers is 80% S and 20% R,what is the specific rotation of the mixture?

Accepted Answer

The answer of The specific rotation of (R)-(+)-glyceraldehyde is +8.7°.If...

Question 10

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

Accepted Answer

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

Question 11

Label the molecule shown as chiral or achiral.

Accepted Answer

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

Question 12

Indicate whether each of the following structures has the R or S configuration.What is the relationship between the two structures?

Accepted Answer

@#IMG-DLM& Therefore

Question 13

Identify the pair of compounds.

Accepted Answer

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

Question 14

Choose the enantiomer of the compound below.

Accepted Answer

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

Question 15

Determine the E/ Z configuration in α-pinene present in juniper berry which is used to flavor gin.

Accepted Answer

The answer of Determine the E/ Z configuration in α-pinene...

Question 16

Label the molecule shown as chiral or achiral.

Accepted Answer

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

Question 17

Identify the compounds that are not chiral.

Accepted Answer

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

Question 18

Draw the stereoisomers of 1,3-dichlorocyclopentane.

Accepted Answer

The answer of Draw the stereoisomers of 1,3-dichlorocyclopentane....

Question 19

Identify the compounds that have an asymmetric center.

Accepted Answer

A) A 
B) B 
C) C 
D) A and B 
E) A,B,and C 
A) A 
B) B 
C) C 
D) A and B 
E) A,B,and C

Question 20

A mixture of equal amounts of two enantiomers

Accepted Answer

A) is called a racemic mixture. 
B) is optically inactive. 
C) implies that the enantiomers are meso forms. 
D) both A and B. 
E) none of the above 
A) is called a racemic mixture. 
B) is optically inactive. 
C) implies that the enantiomers are meso forms. 
D) both A and B. 
E) none of the above

Exam 4: Isomers: the Arrangement of Atoms in Space

Identify the pair of compounds.

Which of the following compounds has an asymmetric center?

Label each asymmetric center as R or S.

Identify all meso compounds.

What is the relationship between the compounds below?

A and B are stereoisomers.They are nonsuperimposable and are mirror images of one another.Which of the following best describes the relationship between A and B?

What is the relationship between the structures shown below?

Draw the structure of a meso form of 1,3-dichlorocyclopentane.Take particular care to indicate three-dimensional stereochemistry detail properly.

The specific rotation of (R)-(+)-glyceraldehyde is +8.7°.If a mixture of glyceraldehydes enantiomers is 80% S and 20% R,what is the specific rotation of the mixture?

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

Label the molecule shown as chiral or achiral.

Indicate whether each of the following structures has the R or S configuration.What is the relationship between the two structures?

Identify the pair of compounds.

Choose the enantiomer of the compound below.

Determine the E/ Z configuration in α-pinene present in juniper berry which is used to flavor gin.

Label the molecule shown as chiral or achiral.

Identify the compounds that are not chiral.

Draw the stereoisomers of 1,3-dichlorocyclopentane.

Identify the compounds that have an asymmetric center.

A mixture of equal amounts of two enantiomers

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

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 Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

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