MCAT Organic Chemistry Question 161: Answer and Explanation
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Question: 161
11. Wavenumber is directly proportional to:
- A. wavelength.
- B. frequency.
- C. percent transmittance.
- D. absorbance.
Correct Answer: B
Explanation:
Wavenumber 
is directly proportional to frequency 
It is inversely proportional to wavelength, choice (A), and has no proportionality to percent transmittance or absorbance, choices (C) and (D).