Question 1

What is the relationship between the following compounds?

Accepted Answer

A) constitutional isomers 
B) enantiomers 
C) diastereomers 
D) conformational isomers 
E) superimposable without bond rotation 
A) constitutional isomers 
B) enantiomers 
C) diastereomers 
D) conformational isomers 
E) superimposable without bond rotation

Question 2

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 3

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 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

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 6

Which of the following is not true of enantiomers?

Accepted Answer

A) They have the same melting point. 
B) They have the same boiling point. 
C) They have the same chemical reactivity with non-chiral reagents. 
D) They have the same density. 
E) They have the same specific rotation. 
A) They have the same melting point. 
B) They have the same boiling point. 
C) They have the same chemical reactivity with non-chiral reagents. 
D) They have the same density. 
E) They have the same specific rotation.

Question 7

Is the molecule shown below chiral or achiral?

Accepted Answer

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

Question 8

Which of the following is a meso compound?

Accepted Answer

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

Question 9

If (S)-glyceraldehyde has a specific rotation of -8.7°, what is the specific rotation of (R)-glyceraldehyde?

Accepted Answer

A) -8.7° 
B) +8.7° 
C) 0)0° 
D) cannot be determined from the information given 
A) -8.7° 
B) +8.7° 
C) 0)0° 
D) cannot be determined from the information given

Question 10

Label the molecule shown as chiral or achiral.

Accepted Answer

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

Question 11

What is the relationship between the following compounds?

Accepted Answer

A) configurational isomers 
B) conformational isomers 
C) constitutional isomers 
D) structural isomers 
E) positional isomers 
A) configurational isomers 
B) conformational isomers 
C) constitutional isomers 
D) structural isomers 
E) positional isomers

Question 12

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

Accepted Answer

The answer of Draw the structure of any diastereomer of...

Question 13

What is the relationship between the following compounds?

Accepted Answer

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

Question 14

Label the molecule shown as chiral or achiral.

Accepted Answer

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

Question 15

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 16

Which of the following is a true statement?

Accepted Answer

A) All chiral molecules possess a plane of symmetry. 
B) All achiral molecules are meso. 
C) All molecules which possess a single chirality center of the S configuration are levorotatory. 
D) A mixture of achiral compounds will be optically inactive. 
E) All molecules which possess two or more chirality centers will be chiral. 
A) All chiral molecules possess a plane of symmetry. 
B) All achiral molecules are meso. 
C) All molecules which possess a single chirality center of the S configuration are levorotatory. 
D) A mixture of achiral compounds will be optically inactive. 
E) All molecules which possess two or more chirality centers will be chiral.

Question 17

Draw the structure of (S)-1-bromo-1-chloropropane. Take particular care to indicate three-dimensional stereochemistry detail properly.

Accepted Answer

The answer of Draw the structure of (S)-1-bromo-1-chloropropane. Take particular...

Question 18

What type of isomers are CH3CH2OCH3 and CH3CH2CH2OH?

Accepted Answer

A) constitutional 
B) symmetrical 
C) configurational 
D) conformational 
E) stereochemical 
A) constitutional 
B) symmetrical 
C) configurational 
D) conformational 
E) stereochemical

Question 19

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 20

Steroisomers which are not mirror image isomers are ________.

Accepted Answer

The answer of Steroisomers which are not mirror image isomers...

Exam 4: Isomers: the Arrangement of Atoms in Space

What is the relationship between the following compounds?

Identify the pair of compounds.

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

Identify all meso compounds.

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?

Which of the following is not true of enantiomers?

Is the molecule shown below chiral or achiral?

Which of the following is a meso compound?

If (S)-glyceraldehyde has a specific rotation of -8.7°, what is the specific rotation of (R)-glyceraldehyde?

Label the molecule shown as chiral or achiral.

What is the relationship between the following compounds?

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

What is the relationship between the following compounds?

Label the molecule shown as chiral or achiral.

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

Which of the following is a true statement?

Draw the structure of (S)-1-bromo-1-chloropropane. Take particular care to indicate three-dimensional stereochemistry detail properly.

What type of isomers are CH3CH2OCH3 and CH3CH2CH2OH?

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

Steroisomers which are not mirror image isomers are ________.

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

What type of isomers are CH₃CH₂OCH₃ and CH₃CH₂CH₂OH?