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CHEM1012 Structure determination
Started: Aug 26 at 14:41
Quiz Instructions
This quiz contributes 7/10 marks towards the Spectroscopy Assignment. Before attempting each
question, ensure you download the spectra PDFs provided with each question.
You can only have one attempt at this quiz, however the quiz does not need to be completed in one
sitting.
Full instructions can be found on the Spectroscopy assignment
8 ptsQuestion 1
Download the spectra for Molecule A.
Which types of bonds (besides C-C and C-H) can be identified in the IR spectrum
of Molecule A?
[ Select ]
By identifying the molecular ion, determine which composition is consistent with
the mass spectrum of A.
[ Select ]
How many hydrogen environments are there in Molecule A?
[ Select ]
The peak at 4.5 ppm in the H NMR spectrum of Molecule A is most likely to be a:
[ Select ]
The peak at 1.3 ppm in the H NMR spectrum of Molecule A is a doublet. How
many protons are on the adjacent carbon?
Which types of bonds (besides C-C and C-H) can be identified in the IR
spectrum of Molecule B?
[ Select ]
By identifying the molecular ion, determine which composition is consistent
with the mass spectrum of B.
[ Select ]
How many hydrogen environments are there in Molecule B?
[ Select ]
The peak at 3.5 ppm in the H NMR spectrum of Molecule B is most likely to
be a:
[ Select ]
The peak at 1.3 ppm in the H NMR spectrum of Molecule B is a triplet. How
many protons are on the adjacent carbon?
[ Select ]
Identify molecule B:
The UV/Visible spectrum of molecule C shows a strong absorption peak around
270 nm.
Use this information and its mass, IR and H NMR spectrum to identify the identity
of molecule C.