Organic Chemistry I

 

Professor Carl C. Wamser

Chapter 5 Pre-Quiz

You must log on to WebCT to submit your answers.

Your answers must be submitted before 8:30 am, Mon., Oct. 23

1. The C2-C3 bond in cyclohexene would be created from overlap of what hybrid orbitals?

a. sp-sp  
b. sp-sp2  
c. sp-sp3  
d. sp2-sp2  
* e. sp2-sp3  
f. sp3-sp3

2. An impossible name would be

a. 2-methyl-1-butene  
b. 2-methyl-2-butene  
c. 2,3-dimethyl-2-butene  
d. 2,3-dimethyl-1-butene  
* e. 1,2-dimethyl-1-butene

3. Dehydration of 3-hexanol would involve loss of the OH group and an H from

a. C-1  
b. C-2  
c. C-3  
d. C-4  
* e. C-2 or C-4  
f. any one of the carbons

4. Elimination of HX from an alkyl halide by the E2 mechanism requires that the H and the X be located

a. on the same carbon atom and oriented cis  
b. on the same carbon atom and oriented trans  
* c. on adjacent carbon atoms and oriented anti  
d. on adjacent carbon atoms and oriented eclipsed  
e. on adjacent carbon atoms and oriented gauche

5. In determining a kinetic isotope effect, typically the rates compared are for compounds containing

* a. H or D, with the rate for H faster  
b. H or D, with the rate for D faster  
c. Cl or Br, with the rate for Cl faster  
d. Cl or Br, with the rate for Br faster