Which one of the following pieces of information cannot be obtained from an infra-red spectrum?
- The molecular mass
- The presence of C=O bonds
- The presence of O-H bonds
- The identity of a compound through comparison with other spectra
Explanation
Infrared (IR) spectroscopy is excellent at identifying functional groups in a molecule,
like C=O and O-H bonds, by detecting their characteristic vibrational frequencies.
It can also help identify a compound by comparing its IR spectrum to reference spectra of known compounds.
However, IR spectroscopy does not provide information about the molecular mass of a compound.
Related MCQs
لوہے پر زنگ لگنا کس تبدیلی کی عام مثال ہے؟
- Chemical Change
- Physical Change
- Both A and B
- None of these
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نیوٹرون کس نے دریافت کیا؟
- Rutherford
- Thomson
- J Perrin
- Chadwick
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ڈفوین _____ کا عمل ہے؟
- Changing of liquid to gas state
- Intermixing of particles of different matters on their own
- Intermixing of particles of different matters with external sources
- None of these
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زمین کی فضا کی کس تہہ میں ہوائی جہاز پرواز کرتے ہیں؟
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
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برقی مقناطیسی قوت کی بہترین تعریف کیا ہے؟
- The force responsible for radioactive decay
- The attraction between any two heavy objects
- The force that acts between charged particles
- None of these
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