1. In the neutral species PF₃ all of the F atoms are equivalent, the P-31 spectrum will consist of how many peaks in what intensity ratios?

2. In the neutral species PF₃ all of the F atoms are equivalent, the F-19 spectrum will consist of how many peaks in what intensity ratios?

3. How many peaks will there be in a "normal" decoupled C-13 spectrum of n-butanol, CH₃CH₂CH₂CH₂OH?

Table of the NMR Properties of Some Isotopes

isotope	I	% abun-dance	sensi-tivity 1 pulse	n in MHz at 4.6 T
H-1	1/2	99.98	1.00	200
H-2	1	0.015	.000001	30.7
C-13	1/2	1.11	.000176	50.3
V-51	7/2	100	.125	52.1

4. Classify each of the following nuclei as S-sharp if it has spin 1/2, I-inactive if it has spin 0, B-broad if it has a spin >1/2.

a) H-1

b) V-51

5. How many orientations does a nucleus of H-2 have?

6. What will the splitting pattern be of the C-13 in the CDCl3 where D = H-2 (the Cl nuclei do not split the C-13)?