Which of the following statements are correct about NMR spectroscopy? 1. All atomic nuclei have a magnetic moment. 2. 'H chemical shifts change monotonically with the percent s character of the carbon to which they are attached 3. 13c'H coupling constants change monotonically with the percent s character of the carbon to which they are attached 4. The most useful features of 'H NMR are the number of signals, the signal integration, and the coupling patterns. 5. The central CH, group of a 1-monosubstituted propane often has 6 lines. О 3, 4, 5 O 1, 4, 5 Correct Answer: 3, 5 О 1, 2, 3, 4, 5 O All atomic nuclei have a magnetic moment. О 2, 3, 4 3, 5 O O O O

Which of the following statements are correct about NMR spectroscopy? 1. All atomic nuclei have a magnetic moment. 2. 'H chemical shifts change monotonically with the percent s character of the carbon to which they are attached 3. 13c'H coupling constants change monotonically with the percent s character of the carbon to which they are attached 4. The most useful features of 'H NMR are the number of signals, the signal integration, and the coupling patterns. 5. The central CH, group of a 1-monosubstituted propane often has 6 lines. О 3, 4, 5 O 1, 4, 5 Correct Answer: 3, 5 О 1, 2, 3, 4, 5 O All atomic nuclei have a magnetic moment. О 2, 3, 4 3, 5 O O O O

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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