Chem 334 - Fall 2001
Organic Chemistry I
Dr. Carl C. Wamser
When you're ready to submit this pre-quiz, you must log in to the class WebCT site.
This pre-quiz must be submitted via WebCT before Wednesday morning, September 26, 8:30 am.
If you have difficulty with WebCT during this first week, you may bring a printed copy of this to turn in before class on Wednesday.
1. Carbon bonded to three hydrogens and having a total of eight valence electrons would have a formal charge of
1) zero
2) +1
*3) -1
4) -2
5) some other value
2. How many constitutional isomers are possible for a compound with the molecular formula of C3H8O ?
1) 2
*2) 3
3) 4
4) 5
5) more than 5
3. The C-C single bond in CH2=CH-CN is formed from which hybrid orbitals?
1) sp3 - sp3
2) sp2 - sp3
3) sp - sp3
4) sp2 - sp2
*5) sp2 - sp
4. Which one of the following is expected to have a zero dipole moment?
*1) CF4
2) NH3
3) CH2F2
4) H3O+
5) CH2=CHBr
5. The VSEPR approach would predict what geometry for NO2+ ?
*1) linear
2) bent
3) trigonal planar
4) tetrahedral