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17 Nov 2019
Please explain how you got the right answer for questions 9,10,11,12. Thank you!
H nuclei located near electronegative atoms tend to be relative to H nuclei which are not. A) deshielded B) shielded resonance D) split E) none of the above 10 Which of the following protons gives an NMR signal with the lowest chemical shift value (farthest upfield)? 1 3 5 Br 2 4 A) 1 B) 2 D) 4 C) 3 E) 5 How many signals would you expect to see in the 1H NMR spectrum of the following compound? A) 1 B) 2 D) 4 E) 5 Br what splitting pattern is observed in the proton NMR spectrum for the indicated hydrogens? B) doublet C) triplet OCH2CH3 A) singlet E) septet D) quartet
Please explain how you got the right answer for questions 9,10,11,12. Thank you!
H nuclei located near electronegative atoms tend to be relative to H nuclei which are not. A) deshielded B) shielded resonance D) split E) none of the above 10 Which of the following protons gives an NMR signal with the lowest chemical shift value (farthest upfield)? 1 3 5 Br 2 4 A) 1 B) 2 D) 4 C) 3 E) 5 How many signals would you expect to see in the 1H NMR spectrum of the following compound? A) 1 B) 2 D) 4 E) 5 Br what splitting pattern is observed in the proton NMR spectrum for the indicated hydrogens? B) doublet C) triplet OCH2CH3 A) singlet E) septet D) quartet
Beverley SmithLv2
1 Jan 2019