Chem 335 - Winter 1999 - Organic Chemistry II
Portland State University - Dr. Carl C. Wamser


Chapter 19 Pre-Quiz Answers

(1 point each)

1. An appropriate name for the compound below would be

a) 1-bromo-3-carboxybenzene

b) 3-bromo-1-carboxybenzene

c) 3-bromobenzoic acid

d) p-bromobenzenecarboxylic acid

e) none of the above


2. Cyclooctatetraene is not considered aromatic because

a) it is not planar

b) it doesn't have ( 4n + 2 ) pi electrons

c) it isn't unusually stable

d) the pi electrons are not delocalized

e) all of the above


3. An example of an aromatic compound that is a five-membered ring would be

a) cyclopentadiene

b) cyclopentatriene

c) pyridine

d) pyrrole

e) naphthalene


4. Phenol has a pKa about 10, which means that at pH 7 it exists mainly as

a) an anion

b) a cation

c) a zwitterion

d) neutral


5. The C-H bond in propylbenzene that would be most reactive towards free radical halogenation is

a) ortho

b) meta

c) para

d) alpha

e) beta

f) gamma