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Question 9 1 pts Consider the below 13c NMR spectrum. What can you say about the

ID: 574776 • Letter: Q

Question

Question 9 1 pts Consider the below 13c NMR spectrum. What can you say about the relative numbers of carbon atoms belonging to signal 2 compared to the number of carbon atoms belonging to signal three? 5 3 4 0.15 2 10 220 210200 190 180 170 160 150 140 130 120 110 100 8070605040302010 o- O There are three times as many carbon atoms belonging to signal 3 compared to signal 2 O You cannot say anything about the relative number of carbon atoms. O There are twice as many carbon atoms belonging to signal 3 compared to signal 2 O There are three times as many carbon atoms belonging to signal 2 compared to signal 3. There are twice as many carbon atoms belonging to signal 2 compared to signal 3

Explanation / Answer

Answer is "You cannot say anything about the relative number of carbon atoms.

Since in 13C NMR, the peak height doesn't correspond to the number of carbon as in the case of 1H NMR.

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