Chem 335 - Winter 2002
Organic Chemistry II
Dr. Carl C. Wamser
In order to do this pre-quiz, you must log in to the class WebCT site.
This pre-quiz must be submitted via WebCT before Monday morning, January 14, 8:30 am.
1. Which compound has the shortest C-H bond?
1) ethane
2) ethene
* 3) ethyne
2. Which reagent would be chosen to reduce an alkyne to a trans-alkene?
1) catalytic hydrogenation with Pt
2) catalytic hydrogenation with Lindlar Pd
* 3) reduction with sodium in liquid ammonia
4) ozonolysis
5) acid-catalyzed hydration
3. Synthesis of 1-butyne from acetylene would most likely require (among other items)
1) 1-bromobutane
2) 2-bromobutane
3) 1-bromopropane
4) 2-bromopropane
* 5) bromoethane
4. Acid-catalyzed hydration of 2-pentyne will give
1) 2-pentanone
2) 3-pentanone
* 3) a mixture of both of the above
4) none of the above
5. The compound with the most acidic C-H bond is
1) ethane
2) ethene
* 3) 1-butyne
4) 2-butyne