Organic Chemistry II |
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Professor Carl C. Wamser |
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Chem 335 - Winter Term |
Pre-Quiz 15 |
(must be done in D2L before Thurs., Feb. 14, 7:30 am)
1. A primary alcohol can be prepared from an aldehyde by treatment with
a) NaOH
b) H2SO4
c) NaBH4
d) PCC
2. An aldehyde can be prepared from a primary alcohol by treatment with
a) NaOH
b) H2SO4
c) NaBH4
d) PCC
3. Ethanethiol is a gas at room temperature, but ethanol is aliquid. The major reason for this is
a) ethanol is more acidic
b) ethanol is more polar
c) ethanol has a higher molecular weight
d) ethanol C-O-H bonds are linear
4. Periodic acid (HIO4) is used to
a) cleave C=C bonds
b) oxidize geminal diols
c) oxidize vicinal diols
d) form epoxides
5. There are three isomeric ethers of formula C4 H10 O. In their C-13 NMR spectra,
a) all show 4 different peaks
b) all show 2 different peaks
c) one shows 4 peaks, one shows 3 peaks, and one shows 2 peaks
d) one shows 2 peaks and the others show 4 peaks