Chem. 30B                              Name _____     ___________________

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

       ____________    ____.

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

 

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

 

/28


  1. [8]  Give a complete name for

 

 

           

4.  [4 each = 8] Complete the following reactions by drawing the structure of one major organic product.

a.

     

       

b.

     

 

c,

 

       

 

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

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

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

 

 




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.

  

b.

   

c.

 

d.