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WorksheetsOC 2 exam 1 2026
Total questions: 13
Worksheet time: 11mins
How many chiral carbons are in the following molecule?
1
2
3
4
Label the chiral center in the following molecule as R or S
R
S
Label the chiral center in the following molecule as R or S
R
S
Why is the expected stretching absorption of the C=O bond 1685 for the structure I and 1715 for structure II?
Compound II has a C to O double bond with considerable single bond character, lowering the expected stretching absorption.
The expected stretching absorption is lowered in all molecules with cyclohexane rings.
Having fewer double bonds results in lowering of all of the stretching absorptions.
The C to O double bond of compound I has greater single bond character than the C to O double bond of compound II.
Which of the given compounds shows two absorptions, one at 2700 and one at 2800 , in addition to the carbonyl absorption?
I
II
III
IV
A compound with molecular formula , shows absorptions at 2500-3300 (broad), 1720 and at 1200 on the IR spectrum. Choose a possible structure(s) for this compound.
I and III
I
II
III and II
________ protons experience a net magnetic field strength that is smaller than the applied magnetic field.
Shielded
Deshieled
Heavy
Paramagnetic
How many signals would you expect in theH NMR spectrum of CH3OCH2CH3?
1
2
3
4
True or false: this would be the correct expected splitting pattern for a 1H NMR of the molecule shown.
True
False
True or False: this would be the correct splitting pattern on 1H NMR of the molecule shown.
True
False
How many signals would there be on a 13C NMR of this molecule?
8
4
5
1
True or False: This IR spectrum showed the presence of an OH group.
False
True
How many signals would you expect in theH NMR spectrum of the compound given?
1
2
3
4
