# Problem: What is the correct assignment of the number of signals in the  13C NMR spectra of the following compounds? a. I=2 sig., II=4 sig., III=3 sig., IV=4 sig. b. I=3 sig., II=4 sig., III=4 sig., IV=5 sig. c. I=2 sig., II=2 sig., III=3 sig., IV=4 sig. d. I=2 sig., II=4 sig., III=5 sig., IV=6 sig. e. I=2 sig., II=3 sig., III=4 sig., IV=5 sig.

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###### Problem Details

What is the correct assignment of the number of signals in the  13C NMR spectra of the following compounds?

a. I=2 sig., II=4 sig., III=3 sig., IV=4 sig.
b. I=3 sig., II=4 sig., III=4 sig., IV=5 sig.
c. I=2 sig., II=2 sig., III=3 sig., IV=4 sig.
d. I=2 sig., II=4 sig., III=5 sig., IV=6 sig.
e. I=2 sig., II=3 sig., III=4 sig., IV=5 sig.

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Our tutors have indicated that to solve this problem you will need to apply the 13C NMR: Cumulative Practice concept. If you need more 13C NMR: Cumulative Practice practice, you can also practice 13C NMR: Cumulative Practice practice problems.

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Based on our data, we think this problem is relevant for Professor Frazer's class at UCF.