Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2007	Pre-Quiz 13

(must be done in WebCT before Mon., Jan. 29, 8:30 am)

1. Compared to red light, infrared has

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

2. The parent molecular ion of 1-butene will be at (m/z) =

a. 48  
b. 52  
c. 54  
* d. 56  
e. 58

3. The compound below that would show exactly two different absorptions in a C-13 NMR is

a. ethane  
* b. butane  
c. benzene  
d. toluene  
e. naphthalene

4. In H-1 NMR, the characteristic signature of an ethyl group is

a. five peaks  
b. a doublet and a triplet  
c. two triplets  
d. two doublets  
* e. a triplet and a quartet

5. In the list below, the bond stretching vibration that occurs at the highest frequency is

a. C-Br  
b. C-H  
c. C=C  
d. C=O  
* e. O-H