Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2005	Chapter 10 Pre-Quiz

(must be done in WebCT before Fri., Jan. 21, 8:30 am)

1. Which of the following would be described as an allylic chloride?

a. 1-chlorocyclohexene  
b. 2-chlorocyclohexene  
* c. 3-chlorocyclohexene  
d. 4-chlorocyclohexene  
e. 5-chlorocyclohexene

2. The stability of the allyl cation is due to a pi system that encompasses

a. two p orbitals  
* b. three p orbitals  
c. four p orbitals  
d. sigma bonds as well as p orbitals

3. Which of the following would be described as a cumulated diene?

a. 1,1-hexadiene  
* b. 1,2-hexadiene  
c. 1,3-hexadiene  
d. 1,4-hexadiene  
e. 1,5-hexadiene

4. Cembrene (p 399) includes examples of

a. only conjugated double bonds  
b. only cumulated double bonds  
c. only isolated double bonds  
d. both conjugated and cumulated double bonds  
* e. both conjugated and isolated double bonds

5. Which of the following would make the best dienophile in a Diels-Alder reaction?

a. benzene  
b. cyclohexene  
c. 2-butyne  
* d. benzoquinone  
e. natural rubber