Glacial acetic acid is _.
Correct answer: B. Pure solid acetic acid at 17°C
- A. Pure liquid acetic acid at 17°C
- B. Pure solid acetic acid at 17°C
- C. Pure solid acetic acid at 118°C
- D. Pure solid acetic acid at -20 °C
Explanation
Pure acetic acid is known as glacial acetic acid because acetic acid on reaching the melting point forms a glacier and thus glacial acetic acid. Pure ethanoic acid is called glacial ethanoic acid because it solidifies just below room temperature, at 16.7oC.
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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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