Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter Term	Quiz 13

1.  (3 points)  There are only two isomers of dichloroethane.  In their proton NMR spectra, A has only one singlet and B has two absorptions.  Identify A and B, and describe the expected appearance of the two absorptions of B.

2.  (1 point)  Which of the isomers of C4H9Br would show exactly three absorptions in its C-13 NMR spectrum?

3.  (3 points)  In the mass spectrum of tert-butyl chloride, the three strongest peaks appear at  m/z = 57, 92, and 94.  Identify the structure of each.

4.  (3 points)  Identify the unknown compound that gives the following spectral data.
         IR         strong, broad absorption at about 3300 cm-1
         H-1 NMR  2.0 ppm, 1H
                           4.0 ppm, 2H
                           7.5 ppm, 5H