alleryPure ethanoic acid freezes into ice-like flakes on cooling. Because of this, it is given a special name. What is it?
AGlacial acetic acid
BRectified spirit
CAbsolute alcohol
DDenatured spirit
Answer & Solution
Correct answer: A. Glacial acetic acid
1. Rectified spirit, absolute alcohol and denatured spirit are all forms of ethanol, not ethanoic acid.
2. On cooling, pure ethanoic acid freezes to flakes that look like glaciers.
3. Because of this glacier-like appearance it is named glacial acetic acid.
4. Hence the answer is glacial acetic acid.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 11 "Carbon and its Compounds", p.172_
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