In 13C NMR, carbon atoms with the lowest electron density have the largest chemical shift (largest ppm shift from 0). Identify the peaks labeled X, Y and Z in the 13C spectrum of butyl acetate as shown below. 200 not X 150 160 140 A. X is 1, Y is 2, Z is 3 B. X is 1, Y is 3, Z is 2 C. X is 2, Y is 1, Z is 3 Enter Your Answer: 120 OA OB 100 ppm OC 80 y 60 40 20 OD OE OF N 0 D. X is 2, Y is 3, Z is 1 E. X is 3, Y is 1; Z is 2 F. X is 3, Y is 2, Z is 1

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In 13C NMR, carbon atoms with the lowest electron density have the largest chemical shift (largest ppm shift from 0). Identify
the peaks labeled X, Y and Z in the 13C spectrum of butyl acetate as shown below.
nat
200
X
150 160 140
A. X is 1; Y is 2, Z is 3
B. X is 1, Y is 3, Z is 2
C. X is 2, Y is 1, Z is 3
Enter Your Answer:
120
100
ppm
OA OB OC
80
60
OD
40
20
N
D. X is 2, Y is 3; Z is 1
E. X is 3, Y is 1; Z is 2
F. X is 3, Y is 2; Z is 1
OE OF
Transcribed Image Text:In 13C NMR, carbon atoms with the lowest electron density have the largest chemical shift (largest ppm shift from 0). Identify the peaks labeled X, Y and Z in the 13C spectrum of butyl acetate as shown below. nat 200 X 150 160 140 A. X is 1; Y is 2, Z is 3 B. X is 1, Y is 3, Z is 2 C. X is 2, Y is 1, Z is 3 Enter Your Answer: 120 100 ppm OA OB OC 80 60 OD 40 20 N D. X is 2, Y is 3; Z is 1 E. X is 3, Y is 1; Z is 2 F. X is 3, Y is 2; Z is 1 OE OF
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