Organic Chemistry I

Professor Carl C. Wamser

Chapter 5 Pre-Quiz

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Your answers must be submitted before 8:30 am, Mon., Oct. 25

1. Which of the following is an INCORRECT name?

a. ethenol  
* b. 1-buten-4-ol  
c. 2-buten-2-ol  
d. 2-buten-1-ol  

2. Which of the following is the most stable isomer of C4H8 ?

a. 1-butene  
b. cis-2-butene  
c. trans-2-butene  
* d. 2-methylpropene  

3. Beta-elimination from 2-bromopentane could involve elimination of Br and

a. an H from C-1 only  
b. an H from C-2 only  
c. an H from C-3 only  
d. an H from C-4 only  
* e. an H from either C-1 or C-3

4. A common reagent for E2 elimination from an alkyl halide is

a. HBr  
b. sulfuric acid  
* c. KOH  
d. heat or light  
e. thionyl chloride

5. A carbocation rearrangement typically involves moving an H from one carbon to another along with

* a. a pair of electrons  
b. one electron  
c. no electrons  
d. a proton