IR Spectroscopy Questions with Detailed Verified Answers

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IR Spectroscopy Questions with
Detailed Verified Answers
Question: 4000-2500 Wavenumbers
Answer: X-H Single Bonds


Question:
2500-2000 Wavenumbers
Answer: Tertiary Bonds, C triple C, C triple N.


Question:
2000-1500 Wavenumbers
Answer: C=O and C=C.


Question:
1500-500
Answer: X-Y single bonds. Other vibrational modes.


Question:
How would you produce an IR spectrum for a homonuclear diatomic? Why
would you need to do this instead of regular IR?
Answer: Use Raman spectroscopy. This is because homonuclear diatomics
have no dipole and so do not absorb IR radiation.


Question:
C=C

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Answer: 1635-1690


Question:
Benzene
Answer: 1450-1625


Question:
NO2
Answer: Symmetric - 1350. Anti-symmetric - 1530.


Question:
Ketone
Answer: 1715


Question:
C triple N
Answer: 2250


Question:
C triple C
Answer: 2100-2250


Question:
C-H
Answer: 2900-3200


Question: