alleryWhy does ethanoic acid freeze in winter (called glacial acetic acid)?
AIt is a salt under typical conditions
BIt is highly volatile
CIt is mixed with water
DIt has a freezing point above 16 degree Celsius
Answer & Solution
Correct answer: D. It has a freezing point above 16 degree Celsius
1. Pure ethanoic acid has a freezing point of about 16.6 degree Celsius.
2. In cold weather room temperature can dip below this value.
3. So the acid solidifies, giving an ice-like solid look.
4. This frozen form is called glacial acetic acid.
5. Hence the cause is its freezing point being above typical winter room temperature.
_Source: syllabus Science Ch 4 'Carbon and its Compounds' (byjus.com extract)_
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