Lesson 4 Review

Carboxylic acids, Esters & Ethers

1.     Name the following molecules.

2.     Draw the following molecules.

a.     benzoic acid

b.     potassium acetate

c.     propyl hexanoate

d.     secbutyl pentyl ether

e.     3,4-dimethylhexanoic acid

3.     The below names are incorrect.  State what is wrong and give the correct name.

a.     Methyl 2-secbutylbutanoate

b.     1-hydoxy-1-nonanone             

4.     The IR for an unknown compound is given below.  When burned on a copper wire, no change was seen in the flame.  No reaction was seen with Br₂ (in 1,1,1-trichloroethane) even when a catalyst was added.  When the compound was heated with concentrated sulfuric acid and then the Br₂ was added, the Br₂ color stayed.  After the unknown was mixed then heated with KMnO₄ and 6M NaOH, then resulting solution was acidified.  Once acidified, a white precipitate formed and was collected.  Although this precipitate was insoluble in water, it was soluble in a sodium bicarbonate solution & produced bubbles.

5.     Complete the following reactions