Carboxylic Acids
Which compound has the highest boiling point due to extensive intermolecular hydrogen-bonded dimer formation?
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Solution
Ethanoic acid
Carboxylic acids form strong cyclic dimers through two hydrogen bonds between neighboring molecules. This significantly increases intermolecular attraction and raises boiling point compared to aldehydes, ketones, and ethers of similar molecular mass. Therefore ethanoic acid has the highest boiling point among the given compounds.
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About This Question
- Subject
- chemistry
- Chapter
- organic compounds containing oxygen
- Topic
- carboxylic acids
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Ethanoic acid
Carboxylic acids form strong cyclic dimers through two hydrogen bonds between neighboring molecules. This significantly increases intermolecular attraction and raises boiling point compared to aldehydes, ketones, and ethers of similar molecular mass. Therefore ethanoic acid has the highest boiling point among the given compounds.
This easy difficulty chemistry question is from the chapter organic compounds containing oxygen, covering the topic of carboxylic acids. It appeared in the 2025 exam.
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