O a. Chemical shifts are larger when the frequencies of the radiation which induces the nuclear transitions are higher O b. NMR signals towards the left of the spectral chart correspond to larger chemical shifts. O c. A hydrogen signal splits into n+1 peaks by spin-spin coupling when the number of equivalent hydrogen atoms on adjacent atom(s) is n, and no other neighbouring atoms are involved O d. Chemical shifts are larger when shielding effects are greater

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which of the following statements regarding NMR spectroscopy is incorrect?

 

 

a. Chemical shifts are larger when the frequencies of the radiation which induces the nuclear
transitions are higher
O b. NMR signals towards the left of the spectral chart correspond to larger chemical shifts.
O C. A hydrogen signal splits into n+1 peaks by spin-spin coupling when the number of equivalent
hydrogen atoms on adjacent atom(s) is n, and no other neighbouring atoms are involved
O d. Chemical shifts are larger when shielding effects are greater
Transcribed Image Text:a. Chemical shifts are larger when the frequencies of the radiation which induces the nuclear transitions are higher O b. NMR signals towards the left of the spectral chart correspond to larger chemical shifts. O C. A hydrogen signal splits into n+1 peaks by spin-spin coupling when the number of equivalent hydrogen atoms on adjacent atom(s) is n, and no other neighbouring atoms are involved O d. Chemical shifts are larger when shielding effects are greater
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