Organic Chemistry III
	Professor Carl C. Wamser
Chem 336 - Spring 2006	Pre-Quiz 23/24

(must be done in WebCT before Mon., May 1, 8:30 am)

1. In the list below, the compound least reactive in an SN2 mechanism will be

a. allyl bromide  
b. ethyl chloride  
* c. bromobenzene  
d. benzyl bromide  
e. benzyl chloride

2. In the list below, the most reactive compound in nucleophilic substitution is

a. 1-fluoro-2,3-dinitrobenzene  
* b. 1-fluoro-2,4-dinitrobenzene  
c. 1-fluoro-3,5-dinitrobenzene  
d. 1-bromo-2,3-dinitrobenzene  
e. 1-bromo-2,4-dinitrobenzene  
f. 1-bromo-3,5-dinitrobenzene

3. The most acidic phenol in the list below is

a. phenol  
b. o-nitrophenol  
c. m-nitrophenol  
d. p-nitrophenol  
* e. 2,4-dinitrophenol

4. The benzyne mechanism starting from m-fluoroethylbenzene could give

a. o-ethylaniline  
b. m-ethylaniline  
c. p-ethylaniline  
d. both ortho and para isomers  
e. both meta and para isomers  
* f. ortho, meta, and para isomers

5. Which of the following is NOT an example of a quinone?

a. Alizarin  
b. Coenzyme Q-10  
* c. Pyrocatechol  
d. Ubiquinone  
e. Vitamin K