Which of (a)-(d) indicates the correct order of chemical shifts of the four carbons in the 13C-NMR spectrum of the following compound. O 11 CH₂=CH-C-0-CH₂ C3 C2 C1 Сме O a. CMe

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL3: Carbon (13c) Nmr Spectroscopy
Section: Chapter Questions
Problem 20CTQ
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number 6
i
CHJ-C-CH,CH(OCH3)2
b c
a
O a. Hydrogen a
O b. Hydrogen c
O c. Hydrogen b
O d. Hydrogen d
QUESTION 6
d
Which of (a)-(d) indicates the correct order of chemical shifts of the four carbons in the 13C-NMR spectrum of the following compound.
O
11
CH₂=CH-C-0-CH₂
C3 C2 C1
Сме
O a. CMe < C2 <C1 <C3
O b.CMe < C1 < C2 < C3
Oc CMe <C2 < C3 < C1
O d. CMe < C3 <C2 < C1
QUESTION 7
Which spectroscopic tool would be best for distinguishing a sample of 1,2,2-tribromopropane from 1,1,2-tribromopropane?
O a Mass spectrometry
O b. IR Spectroscopy
OC NMR Spectroscopy
Od UVVis Spectroscopy
Transcribed Image Text:i CHJ-C-CH,CH(OCH3)2 b c a O a. Hydrogen a O b. Hydrogen c O c. Hydrogen b O d. Hydrogen d QUESTION 6 d Which of (a)-(d) indicates the correct order of chemical shifts of the four carbons in the 13C-NMR spectrum of the following compound. O 11 CH₂=CH-C-0-CH₂ C3 C2 C1 Сме O a. CMe < C2 <C1 <C3 O b.CMe < C1 < C2 < C3 Oc CMe <C2 < C3 < C1 O d. CMe < C3 <C2 < C1 QUESTION 7 Which spectroscopic tool would be best for distinguishing a sample of 1,2,2-tribromopropane from 1,1,2-tribromopropane? O a Mass spectrometry O b. IR Spectroscopy OC NMR Spectroscopy Od UVVis Spectroscopy
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