Maya2002
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#1
Report Thread starter 6 months ago
#1
Which one of the following statements about infrared spectroscopy is incorrect?
a) Infrared spectroscopy involves the interaction of molecules with electromagnetic radiation.
b) Infrared spectroscopy mostly provides information about the presence of certain functional groups in organic molecules.
c) Strongly polar bonds as found in carbonyl groups produce strong infrared absorption bands.
d) The two most common infrared absorption band shapes are narrow and broad.
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scimus63
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#2
Report 6 months ago
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a,b and c are all true. D could be!

a. IR is obviously e/m radiation is a is true
b. the whole point of running an IR is to detect functional groups
c. C=O do give strong absorption, one of the most recognizable on an IR spectra
d. I guess the most common absorption are OH and CO, OH can be broad if hydrogen bonded, C=O can be broad and also narrow, depends on the molecule. I think overall if it me , i would pick a,b,c to be true and d false but I could be wrong!
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Maya2002
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#3
Report Thread starter 6 months ago
#3
(Original post by scimus63)
a,b and c are all true. D could be!

a. IR is obviously e/m radiation is a is true
b. the whole point of running an IR is to detect functional groups
c. C=O do give strong absorption, one of the most recognizable on an IR spectra
d. I guess the most common absorption are OH and CO, OH can be broad if hydrogen bonded, C=O can be broad and also narrow, depends on the molecule. I think overall if it me , i would pick a,b,c to be true and d false but I could be wrong!
Thanks, I got D too
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