Acetic acid exists as dimer in benzene due to:
Correct answer: D. Hydrogen bonding
- A. Presence of hydrogen at α-carbon
- B. Condensation reaction
- C. Presence of carboxyl group
- D. Hydrogen bonding
Explanation
In non-polar solvents like benzene, two molecules of acetic acid can form a stable, hydrogen-bonded dimer. The hydragen of one carboxyl group forms a hydrogen bond with the carbonyl oxygen of the other, and vice versa, creating an eight-membered ring.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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