Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter 2007	Pre-Quiz 17

(must be done in WebCT before Wed., Feb. 28, 8:30 am)

1. The equilibrium constant for hydration is largest for

* a. formaldehyde  
b. acetaldehyde  
c. acetone  
d. di-tert-butyl ketone

2. The molecular formula for the cyanohydrin of acetophenone is

a. C6 H5 N  
b. C8 H7 N O  
* c. C9 H9 N O  
d. C9 H8 N  
e. C8 H8 N O

3. The absorption of light by rhodopsin causes what type of reaction?

a. imine formation  
* b. C=C isomerization  
c. imine hydrolysis  
d. addition to retinal  
e. dehydration

4. The Wittig synthesis of 2-octene might involve

a. methanal  
* b. ethanal  
c. propanal  
d. butanal  
e. octanal

5. Imines from which of the following could exist as E,Z isomers?

a. acetone plus methylamine  
b. formaldehyde plus methylamine  
* c. acetaldehyde plus methylamine  
d. acetone plus dimethylamine  
e. acetaldehyde plus dimethylamine