Chem 336 - Spring 2000
Organic Chemistry III
Dr. Carl C. Wamser

Chapter 21 Pre-Quiz

1. An example of a secondary amine is

a) cyclohexylamine

b) aniline

c) isopropyl amine

d) N-methylaniline

e) p-methylaniline

2. An amine with a pKb of 5 would have a conjugate acid with a pKa of

a) 5

b) 7

c) 9

d) 10

e) 11

3. Diazotization refers to a reaction of

a) an amine with nitric acid

b) an amine with a nucleophile

c) an ammonium ion with a nucleophile

d) an amine with nitrous acid

e) an ammonium ion converted into a nucleophile

4. Complete methylation of aniline with excess methyl iodide will result in a compound containing how many carbon atoms? (assuming base such as Na2CO3 is available)

a) 6

b) 7

c) 8

d) 9

e) 10

5. The infrared spectrum of a primary amine shows two absorptions in the N-H stretching region because

a) there are two N-H bonds that absorb separately

b) the C-H stretching couples to the N-H stretching

c) the CH2 neighbor splits the absorption

d) a Mclafferty rearrangement takes place

e) there are distinct symmetric and antisymmetric stretching absorptions