Question 1

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 2

Identify the following compounds as R or S.

Accepted Answer

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

Question 3

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

Accepted Answer

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

Question 4

What is the configuration of the following compound?

Accepted Answer

A) 2S,3R 
B) 3R,3S 
C) 2S,3S 
D) 2R,3R 
E) Can't do R and S; the compound is achiral. 
A) 2S,3R 
B) 3R,3S 
C) 2S,3S 
D) 2R,3R 
E) Can't do R and S; the compound is achiral.

Question 5

Which of the following molecules will not rotate the plane polarized light?

Accepted Answer

A) I and II 
B) III and IV 
C) I and III 
D) I and IV 
E) all of the above 
A) I and II 
B) III and IV 
C) I and III 
D) I and IV 
E) all of the above

Question 6

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

Accepted Answer

not chiral

Question 7

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 8

Label the asymmetric center(s)in linalool shown below,which is a major compound present in the essential oil of coriander.

Accepted Answer

The answer of Label the asymmetric center(s)in linalool shown below,which...

Question 9

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 10

Which of the following is a meso compound?

Accepted Answer

A) trans-1,4-dimethylcyclohexane 
B) cis-1,3-dimethylcyclohexane 
C) trans-1,3-dimethylcyclohexane 
D) cis-1,4-dimethylcyclohexane 
E) trans-1,2-dimethylcyclohexane 
A) trans-1,4-dimethylcyclohexane 
B) cis-1,3-dimethylcyclohexane 
C) trans-1,3-dimethylcyclohexane 
D) cis-1,4-dimethylcyclohexane 
E) trans-1,2-dimethylcyclohexane

Question 11

Which of the following molecules will rotate the plane polarized light?

Accepted Answer

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

Question 12

Identify all identical 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 13

Give the number of asymmetric centers in limonene.

Accepted Answer

A) 2 
B) 3 
C) 1 
D) 5 
E) 4 
A) 2 
B) 3 
C) 1 
D) 5 
E) 4

Question 14

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 15

Which of the following is a meso compound?

Accepted Answer

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

Question 16

Provide a careful structure for (2R,3S)-2,3-dibromohexane.

Accepted Answer

The answer of Provide a careful structure for (2R,3S)-2,3-dibromohexane....

Question 17

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 18

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 19

What is absolute configuration at the asymmetric center of the following molecule?

Accepted Answer

The answer of What is absolute configuration at the asymmetric...

Question 20

Meso compounds

Accepted Answer

A) are chiral 
B) have plane of symmetry 
C) are optically inactive 
D) are constitutional isomers 
E) B and C 
A) are chiral 
B) have plane of symmetry 
C) are optically inactive 
D) are constitutional isomers 
E) B and C

Exam 4: Isomers: the Arrangement of Atoms in Space

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

Identify the following compounds as R or S.

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

What is the configuration of the following compound?

Which of the following molecules will not rotate the plane polarized light?

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

Identify the pair of compounds.

Label the asymmetric center(s)in linalool shown below,which is a major compound present in the essential oil of coriander.

What is the relationship between the following compounds?

Which of the following is a meso compound?

Which of the following molecules will rotate the plane polarized light?

Identify all identical compounds.

Give the number of asymmetric centers in limonene.

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

Which of the following is a meso compound?

Provide a careful structure for (2R,3S)-2,3-dibromohexane.

How many diastereomers exist for the compound below?

What is the relationship between the following compounds?

What is absolute configuration at the asymmetric center of the following molecule?

Meso compounds

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

Filters

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