Which of the following is most soluble in water?
Correct answer: A. Ethanoic acid
- A. Ethanoic acid
- B. Pentanoic acid
- C. Hexanoic acid
- D. Butanoic acid
Explanation
Smaller carboxylic acids (C1 to C5) are soluble in water, whereas larger carboxylic acids (C6 and above) are less soluble due to the increasing hydrophobic nature of the hydrocarbon chains.
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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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