Chem. 30B                              Name KEY

Exam #1                                          please print

March 19, 2003                                                60 min.  100 points

Some questions have more than one correct answer, but you must give only one.

 

Points are in square brackets, e.g. [5].

 

1. Draw the structure of . . .                                                   Draw structures here

 [5] a.  A compound with formula  C5H10 which can react with Br2

 

 

 [3] b. A compound with formula  C5H10 which will not react with Br2

 

 

 

 [5] c.  diethyl disulfide

 

 

 

[6]  d. trans -2,3-dichloro-2-pentene

 

 

 

 

2. Fill in the blanks.

[3]   a. A compound containing two carbon-carbon double bonds is called  a

       DIENE

[3]   b.  The addition of water to a double bond is called HYDRAYTION

 

[3]  c. The first product of a reaction between an aldehyde and an alcohol is called a HEMIACETAL___.

 

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  1. [8]  Give a complete name for

 

 

 

 

2-chloro-4-isopropylphenol

           

44. Draw the structure of the major organic  products of each of the following reactions.

 

a.

[6]      +   CH3SH                             

 

 

b.

                           

[6]      

 

c. 

[6]      

 

 

             

 

 

5.  [4]  a. In the set of compounds below, the one with highest boiling point is _b.

    [4]  b. The one with lowest boiling point is e.

    [4]   c. The one with the greatest water solubility is b.

 

 

 

6.[4]  a. Draw a simple clear sketch showing three molecules of methanol hydrogen bonding to each other. Use dashed lines (---) to show the hydrogen bonds.

 

   [4]   b. Draw a simple clear sketch showing one molecule of methanol hydrogen bonding to three molecules of water.

 




7. [10] Circle and name all the functional groups in the following compound.

 

 

 

 

 

8. [3 each = 12] Label each structure as a hemiacetal, acetal or neither of these.

 

 

a.

    neither

b.

     acetal

c.

acetal

 

d.

 hemiacetal

 

 

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