Chem 335 - Winter 1999 -
Organic Chemistry II (1 point each)
1. In comparing red light and violet light, red light has
a) higher frequency and higher wavelength
b) higher frequency and lower wavelength
c) lower frequency and higher wavelength
d) lower frequency and lower wavelength
e) same frequency and wavelengt
2. An NMR spectrum shows a resonance absorption
when the applied magnetic field
a) matches the magnetic field of the nuclei
b) matches the magnetic field from the radiofrequency
c) creates an energy gap that matches the radiofrequency
d) creates a balance between shielding and deshielding
e) splits the nuclear spins
3. In an NMR spectrum, the molecule propane will exhibit
how many different types of equivalent hydrogens?
a) one
b) two
c) three
d) four
e) eight
4. In an NMR spectrum, the molecule pentane will exhibit
how many different types of equivalent carbons?
a) one
b) two
c) three
d) four
e) five
5. The NMR peak corresponding to the methyl hydrogens
of 2-methylpropane is expected to be split into a
a) singlet
b) doublet
c) triplet
d) quartet
e) more complicated pattern