Please correct answer and don't use hand rating Which of the compounds shown most closely corresponds to the IR data: 3500-3200 cm (weak) and 2950-2850 cm ? Select the single best answer.NHOHNH₂B000Ar> >A

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Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter17: Applications Of Infrared Spectrometry

Section: Chapter Questions

Problem 17.4QAP

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Which one of the following compounds (from Figure #7) produced the 'H NMR spectrum (from Figure #8) shown below? Figure #7 inte compound A compound B compound C compound D Please click here if image does not display. Figure #8 3 203938 PPM 10 9 8 7 5 4 3 2 1 8 (ppm) Please click here if image does not display. O compound A O compound D O compound C O compound B
PQ-2. Which structure would show major fragments in its mass spectrum at 57 and 85 m/z? O O (A) H3C (C) H3C CH3 CH3 (B) H3C (D) H3C CH3 CH3 CH3
Methyl ethyl ether (shown below) has an -OCH 2 - group, an -OCH 3 - group, and a methyl group. The ' H NMR spectrum displays a quartet at 3.5 ppm, a signal at 3.0 ppm, and a signal at 1.2 ppm. Using the data in the table, what is the correct assignment of the spectrum? H H. H. Proton Environment Chemical Shift (8,ppm) Methylene, -C H 2 - 0.3 - 1.2 Methyl, -C H 3 1.1 - 1.9 Alkoxy, -OC H 2/3 3.3 - 4.0 -OC H 3 = 3.5 ppm (quartet), -OC H 2 = 3.0 ppm (singlet), -C H 3 = 1.2 ppm (triplet) -OC H 3 = 1.2 ppm (singlet), -OCH 2 3.5 ppm (quartet), -C H 3 = 3.0 ppm (triplet) -OC H 3 = 3.0 ppm (singlet), -OCH 2= 3.5 ppm (quartet), -C H 3 = 1.2 ppm (triplet) -OC H 3 = 3.5 ppm (quartet), -OC H 2 1.2 ppm (triplet), -C H 3 = 3.0 ppm (quartet) -OC H 3 = 1.2 ppm (singlet), -OCH 2= 3.0 ppm (doublet), -C H 3 = 3.5 ppm (quartet) -OC H 3 = 3.0 ppm (triplet), -OC H 2 = 3.5 ppm (quartet), -C H 3 = 1.2 ppm (triplet)
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Which of the compounds shown most closely corresponds to the IR data: 3500-3200 cm (weak) and 2950-2850 cm ? Select the single best answer. NH OH NH₂ B 000 Ar > > A