Engineering Chemistry Questions and Answers – Nuclear Magnetic Resonance

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Nuclear Magnetic Resonance”.

1. The nuclei with a spin quantum number greater than _______ can exhibit the NMR phenomenon.
a) 0
b) 5
c) 10
d) -5
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2. The number of different orientations which a magnetic nucleus can take is ____________
a) 2I
b) 2I-1
c) 2I+1
d) 4I
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3. Number of NMR signals obtained in CH₃COCH₃ will be ____________
a) 6
b) 3
c) 2
d) 1
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4. Propene as well as 2-Butene(cis) will show equal number of signals in their NMR spectra.
a) True
b) False
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5. Select the incorrect statement from the following option.
a) TMS stands for tetra methyl silane
b) All the hydrogen in TMS have the same chemical shift
c) TMS has a high boiling point, so it is not easily lost when holding the NMR sample
d) TMS is relatively unreactive with most functional groups
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6. The NMR spectra of the functional isomers of the molecular formula C₂H₆O show _________ and _________ signals respectively.
a) 1, 2
b) 1, 3
c) 1, 4
d) 1, 5
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7. The number of signals in 1-propanol are _________ while those in 2-propanol are ______
a) 4, 3
b) 4, 2
c) 2, 4
d) 3, 4
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8. For NMR spectrum, carbon tetrachloride and water can be successfully used as a solvent.
a) True
b) False
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9. In how many ways –CH₃ protons can couple with the protons on adjacent carbon atom relative to the external field.
a) 1
b) 2
c) 3
d) 4
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10. Which of the following is inversely proportional to the chemical shifts positions (δ)?
a) Frequency of unknown group of protons
b) Frequency of TMS
c) Operating frequency of the instrument
d) All of the mentioned
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Sanfoundry Global Education & Learning Series – Engineering Chemistry.

To practice all areas of Engineering Chemistry, here is complete set of 1000+ Multiple Choice Questions and Answers.