Which Compound's Carbonyl Stretch Occurs at the Lowest Wavenumber

question 83

Multiple Choice

Which compound's carbonyl stretch occurs at the lowest wavenumber?

• A) CH₃CH₂CH₂CHO
• B) CH₃COCH₂CH₃
• C) CH₃CH₂CONH₂
• D) CH₃CH₂CO₂CH₃
• E) CH₃CH₂COCH₂CH₃

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