Which of the following compounds best fits the predicted 'H NMR spectrum shown below? (The table shows the chemical shift for groups attached to a bromine (Br) atom or a cyano (CN) group measured from the centre of the multiplet.) CH3 1.98 ppm 2.45 ppm 2.9 ppm Group CH2 CH CN Br 27 ppm 3.4 ppm 4.25 ppm 11 10 7 6 5 4 3 2 Select one: CH3-CH2-Br CH3-CH-Br CH;CH2C=N CH;CHC=N CH,
Which of the following compounds best fits the predicted 'H NMR spectrum shown below? (The table shows the chemical shift for groups attached to a bromine (Br) atom or a cyano (CN) group measured from the centre of the multiplet.) CH3 1.98 ppm 2.45 ppm 2.9 ppm Group CH2 CH CN Br 27 ppm 3.4 ppm 4.25 ppm 11 10 7 6 5 4 3 2 Select one: CH3-CH2-Br CH3-CH-Br CH;CH2C=N CH;CHC=N CH,
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:An unknown compound A has the molecular formula C4H3O2. Based on the following H NMR spectrum, what is the structure of compound A?
| зн
|3H
|2H
11
10
9
Select one:
OH

Transcribed Image Text:Which of the following compounds best fits the predicted 'H NMR spectrum shown below?
(The table shows the chemical shift for groups attached to a bromine (Br) atom or a cyano (CN) group measured from the centre of the multiplet.)
Group
CH3
CH2
CH
1.98 ppm 2.45 ppm
2.7 ppm
CN
2.9 ppm
Br
3.4 ppm
4.25 ppm
11
10
7
6.
4
3
2
1
Select one:
CH3-CH2-Br
CH3-CH-Br
ČH3
CH;CH2C=N
CH;CHCEN
CH,
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