Question 1
Which spectroscopic technique can be used to determine bond length and angles?
Mass spectroscopy
IR spectroscopy
X-ray diffraction
1H NMR spectroscopy
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DP IB Chemistry: HL
Topic Questions
21.1 Spectroscopic Identification of Organic compounds
Question 2
Which row correctly describes the splitting pattern observed on the 1H NMR spectrum for each labelled hydrogen?
One doublet and four triplets
One triplet, one quartet and one singlet
One triplet, one doublet and three singlets
One triplet, one quartet and three singlets
Question 3
Tetramethylsilane(TMS) is used as a reference standard in 1H NMR spectroscopy. Which property makes it suitable as a reference standard?
It is highly reactive
It has no isomers
It has 12 identical protons
It has a high boiling point
Question 4
Which of the following produces three peaks in an 1H NMR spectrum?
- CH3COCH2CH3
- C6H5NO2
- CH3CH2OH
I and II only
I and III only
II and III only
I, II and III
Question 5
Which molecule could give this NMR spectrum?
CH3CH2OCH2CH3
CH3CH(OH)CH2CH3
CH3COCH2CH3
CH3COCH2CH2CH3
