Organic Chemistry II

Professor Carl C. Wamser

Chem 335 - Winter 2005

Chapter 12 Pre-Quiz

(must be done in WebCT before Fri., Feb. 4, 8:30 am)

1. The activating substituent in the list below is

a. CN  
* b. OCH3  
c. Cl  
d. NO2  
e. COOH

2. The meta-directing substituent in the list below is

a. F  
b. Br  
c. CH3  
d. OCH3  
* e. COOH

3. The preferred position for electrophilic substitution on pyrrole is

a. 1  
* b. 2  
c. 3  
d. 4

4. An example of regioselectivity is

a. toluene reacting faster than benzene  
* b. para product forming faster than meta

5. The preparation of p-nitrotoluene is best done by

a. nitration followed by methylation  
* b. methylation followed by nitration