Question 1 How many possible trisubstituted derivatives C6H3X2Y can be obtained from the meta disubstituted benzene C6H4X2? (Ignore directive effects of the substituents X and assume that all positions on the ring are accessible to the reagent Y+).Answer a.oneb.twoc.threed.four1 points Question 2 m-Bromoaniline is: Answer a.1b.2c.3d.4e.51 points Question 3 Which reaction gives the compound shown as the major product? Answer a.1b.2c.3d.41 points Question 4 What is the IUPAC name of the compound shown? Answer a.1-Benzyl-4-methyl-1-pentanolb.1-Benzyl-5-methyl-2-hexanolc.Question 1 

How many possible trisubstituted derivatives C6H3X2Y can be obtained from the meta disubstituted benzene C6H4X2? (Ignore directive effects of the substituents X and assume that all positions on the ring are accessible to the reagent Y+).

Answer 

 

a. one   

b. two   

c. three   

d. four  

1 points 

Question 2 

m-Bromoaniline is: 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4   

e. 5  

1 points 

Question 3 

Which reaction gives the compound shown as the major product? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4  

1 points 

Question 4 

What is the IUPAC name of the compound shown? 

 

 

 

Answer 

 

a. 1-Benzyl-4-methyl-1-pentanol   

b. 1-Benzyl-5-methyl-2-hexanol   

c. 1-Benzyl-3-isopropyl-1-propanol   

d. 5-Methyl-1-phenyl-2-hexanol   

e. 2-Methyl-5-hydroxy-6-phenylhexane  

1 points 

Question 5 

Which of the compounds shown below is aromatic according to Hückel's rule? 

 

 

 

Answer 

 

a. A only   

b. B only   

c. C only   

d. A and B   

e. A and C  

1 points 

Question 6 

Chlorination of nitrobenzene (C6H5NO2) under conditions of electrophilic aromatic substitution occurs

Answer 

 

a. faster than chlorination of benzene and gives a mixture containing mostly o- and p-chloronitrobenzene.   

b. faster than chlorination of benzene and gives mostlym-chloronitrobenzene.   

c. slower than chlorination of benzene and gives a mixture containing mostly o- and p-chloronitrobenzene.   

d. slower than chlorination of benzene and gives mostly m-chloronitrobenzene.  

1 points 

Question 7 

Which one of the following is not a resonance form of the others? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4   

e. 5  

1 points 

Question 8 

What is the correct structure of cyclohexylbenzene? 

 

 

 

Answer 

 

a. 1   

b. 2   

c. 3   

d. 4  

1 points 

Question 9 

In which series are the carbon-carbon bond lengths arranged in the correct order from shortest to longest?

Answer 

 

a. Benzene<ethylene<cyclohexane   

b. cyclohexane<benzene<ethylene   

c. Cyclohexane<ethylene<benzene   

d. ethylene<cyclohexane<benzene   

e. ethylene<benzene<cyclohexane  

1 points 

Question 10 

All of the following substituents are deactivating; some more than others. Only one of the substituents, however, is a meta-directing group. Which one?

Answer 

 

a. -Cl   

b. -F   

c. -CH2Cl   

d. -CHCl2   

e. -CCl3  

1 points 

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