Question 1 Which one of the following is chiral? Answer a.1b.2c.3d.41 points Question 2 Which one of the following is chiral? Answer a.1b.2c.3d.4e.51 points Question 3 For which constitution (represented by the name) is the greatest number of stereoisomers possible?Answer a.2-Bromo-3-chloro-4-hexen-1-olb.2-Bromo-4-chloro-4-hexen-1-olc.2-Bromo-5-chloro-4-hexen-1-old.2-Bromo-6-chloro-4-hexen-1-ole.4-Bromo-5-chloro-4-hexen-1-ol1 points Question 4 While all of the following sentences are correct, only one of them correctly defines a meso compound.

 

Question 1 

Which one of the following is chiral? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4  

1 points 

Question 2 

Which one of the following is chiral? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4   

e. 5  

1 points 

Question 3 

For which constitution (represented by the name) is the greatest number of stereoisomers possible?

Answer 

 

a. 2-Bromo-3-chloro-4-hexen-1-ol   

b. 2-Bromo-4-chloro-4-hexen-1-ol   

c. 2-Bromo-5-chloro-4-hexen-1-ol   

d. 2-Bromo-6-chloro-4-hexen-1-ol   

e. 4-Bromo-5-chloro-4-hexen-1-ol  

1 points 

Question 4 

While all of the following sentences are correct, only one of them correctly defines a meso compound. The others merely express properties that are not unique to meso compounds alone. Which one is the definition?

Answer 

 

a. A meso compound has stereogenic centers but is achiral.   

b. A meso compound contains a plane of symmetry or a center of symmetry.   

c. A meso compound cannot be resolved into enantiomers.   

d. A meso compound possesses a mirror image but is superimposable on it.   

e. A meso compound is optically inactive.  

1 points 

Question 5 

Which one of the compounds shown below is the enantiomer of the compound shown in the box at the left? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4   

e. 5  

1 points 

Question 6 

A racemic mixture

Answer 

 

a. contains two or more achiral substances.   

b. contains equal quantities of enantiomers.   

c. contains equal quantities of diastereomers.   

d. is optically active.  

1 points 

Question 7 

The relationship between the two compounds shown below is that they are: 

 

 

 

Answer 

 

a. Enantiomers   

b. Diastereomers   

c. Constitutional isomers   

d. Different conformations of same compound  

1 points 

Question 8 

Which one of the following compounds can exist in four stereoisomeric forms?

Answer 

 

a. 1-Bromo-2-methylbutane   

b. 2-Bromo-2-methylbutane   

c. 2-Bromo-3-methylbutane   

d. 3-Bromo-1-chloro-2-methylbutane   

e. 3-Bromo-1-chloro-3-methylbutane  

1 points 

Question 9 

Which molecule is an enantiomer of compound A? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4   

e. 5  

1 points 

Question 10 

Which Newman projection corresponds to meso-2,3-dichlorobutane? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4