26-How many signals would the following molecule show in its 'II NMR spectrum?A) 5 B)1 C)6D) 827-The proton nmr spectrum of 2-Bromopropane will consist of...a-a triplet and a singlet b-a triplet and a septet e-a triplet and a quartet d-a doublet and a septet28-How many signals would the following molecule show in its '¹H NMR spectrum?A) S B)1 C)6D) 829-The proton nmr spectrum of propane will consist of...a-a triplet and a singlet b-a triplet and a septet c-a triplet and a quartet d- a doublet and a sextet30-Which of the following alkyl groups would show the multiplet pattern depicted in the diagram?11CH3CH3-CH-CHyX(b)CH3CHy-C-CH-CH-X CH3-CH2-CH-XCH3CH331.An unknown molecule A has 4 signals in the 1H NMR spectrum. Which of the followingcorresponds to molecule A?6A)d-CH3-CH2-CH2-X

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26-How many signals would the following molecule show in its 'H NMR spectrum? A) 5 B)1 C)6 D) 8

Organic Chemistry

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Chapter17: Alcohols And Phenols

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Problem 55AP: A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+=88.1 IR:...

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

26-How many signals would the following molecule show in its 'II NMR spectrum?
A) 5 B)1 C)6
D) 8
27-The proton nmr spectrum of 2-Bromopropane will consist of...
a-a triplet and a singlet b-a triplet and a septet e-a triplet and a quartet d-a doublet and a septet
28-How many signals would the following molecule show in its '¹H NMR spectrum?
A) S B)1 C)6
D) 8
29-The proton nmr spectrum of propane will consist of...
a-a triplet and a singlet b-a triplet and a septet c-a triplet and a quartet d- a doublet and a sextet
30-Which of the following alkyl groups would show the multiplet pattern depicted in the diagram?
11
CH3
CH3-CH-CHyX
(b)
CH3
CHy-C-CH-CH-X CH3-CH2-CH-X
CH3
CH3
31.An unknown molecule A has 4 signals in the 1H NMR spectrum. Which of the following
corresponds to molecule A?
6
A)
d-
CH3-CH2-CH2-X

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