Nuclear Magnetic Resonance Spectroscopy (VCE SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does NMR spectroscopy detect in molecules?
What does NMR spectroscopy detect in molecules?
Changes in nuclear spin states
Which property must nuclei have to be detected by NMR spectroscopy?
Which property must nuclei have to be detected by NMR spectroscopy?
Odd number of protons and/or neutrons
What do equivalent atoms in a molecule produce in an NMR spectrum?
What do equivalent atoms in a molecule produce in an NMR spectrum?
A single signal
What does the number of signals in an NMR spectrum indicate?
What does the number of signals in an NMR spectrum indicate?
Number of different chemical environments
In proton NMR, what is the peak area proportional to?
In proton NMR, what is the peak area proportional to?
Number of H atoms in that environment
According to the rule, a quartet indicates how many neighbouring H atoms?
According to the rule, a quartet indicates how many neighbouring H atoms?
3
What splitting pattern results from having 2 neighbouring H atoms?
What splitting pattern results from having 2 neighbouring H atoms?
Triplet
What is the chemical shift value of TMS (tetramethylsilane) defined as?
What is the chemical shift value of TMS (tetramethylsilane) defined as?
ppm
Why don't carbon-13 NMR spectra show splitting patterns?
Why don't carbon-13 NMR spectra show splitting patterns?
C-13 is only 1.1% abundant
What is the chemical shift range for carbon-13 NMR?
What is the chemical shift range for carbon-13 NMR?
0 to about 220 ppm