Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2008	Pre-Quiz 13

(must be done in WebCT before Mon., Jan. 28, 8:30 am)

1. Compared to a photon of visible red light, an infrared photon will have

a. longer wavelength and higher frequency
b. shorter wavelength and higher frequency
* c. longer wavelength and lower frequency
d. shorter wavelength and lower frequency

2. The technique that would most easily distinguish between cyclopentane and cyclohexane would be

a. infrared
b. ultraviolet
c. H NMR
d. C-13 NMR
* e. mass spec

3. A proton NMR chemical shift of 11 is most likely to be caused by

a. an alkyl C-H
b. an aryl C-H
c. an alcohol O-H
* d. a carboxylic acid O-H
e. an aldehyde C-H

4. An infrared absorption at 2250 cm-1 is most likely to be caused by

a. an alkene
b. an arene
* c. a nitrile
d. a ketone
e. an alcohol

5. The index of hydrogen deficiency for a compound with the molecular formula C5H7Br is

a. 0
b. 1
* c. 2
d. 3
e. 4