
Spectroscopic techniques
Authored by Emma Bure
Chemistry
11th - 12th Grade
Used 10+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which region of the electromagnetic spectrum has the longest wavelength?
ultraviolet
infrared
radio
visible
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is used to identify the bonds in a molecule.
Infrared spectroscopy
mass spectroscopy
x ray crystallography
NMR
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a mass spectrum, the fragment with the highest mass belongs to the _________.
[COOH]+
whole molecule
most abundant ion
molecular ion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This fragment has a mass of 15.
OH-
H2O
CH3
CH3+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It causes a bond to stretch or bend.
radio waves
microwaves
infrared radiation
X rays
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Which part of the EM spectrum is used in nuclear magnetic resonance spectroscopy?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What information can be obtained from the number of peaks in the H NMR spectrum of a compound?
The number of different chemical environments occupied by the protons in one molecule of the compound.
The number of hydrogen atoms in one molecule of the compound.
The number of different functional groups in one molecule of the compound
the number of carbon atoms in one molecule of the compound
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