Organic Chemistry II |
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Professor Carl C. Wamser |
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Chem 335 - Winter 2005 |
Chapter 9 Pre-Quiz |
(must be done in WebCT before Wed., Jan. 12, 8:30 am)
1. The order of acidity of C-H bonds is
a. sp3 > sp2 > sp
* b. sp > sp2 > sp3
c. all are the same
2. A base strong enough to deprotonate acetylene is
a. KOH in EtOH
b. NaOH in H2O
c. liquid NH3
d. Na2CO3
* e. NaNH2 in NH3
3. The Lindlar catalyst is useful for
a. oxidation of alkynes
b. anti-Markovnikov addition to alkynes
* c. cis-hydrogenation of alkynes
d. hydration of alkynes
e. nucleophilic substitution with alkynes
4. Which of the following could be described as a vicinal dihalide?
a. 1,1-dibromobutane
* b. 1,2-dibromobutane
c. 1,3-dibromobutane
d. 1,4-dibromobutane
e. none of the above
5. Trans-alkenes can be made from alkynes using
a. H2 with catalyst
b. NaNH2 in NH3
* c. Na in NH3
d. KOH in EtOH
e. ozone