The aliphatic monocarboxylic acids are obtained by the hydrolysis of________________?
Correct answer: C. fats and oils
- A. proteins and oild
- B. fats and proteins
- C. fats and oils
- D. all above
Explanation
Fats and oils are esters of glycerol with long-chain carboxylic acids. Hydrolysis breaks these ester bonds and produces glycerol plus fatty acids, which are aliphatic monocarboxylic acids. Students may choose fats and proteins because proteins also hydrolyse, but protein hydrolysis produces amino acids rather than fatty acids.
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About Nomenclature, Structure and Preparation
Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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