explain why beer which contains ethanol becomes sour if left uncovered overnight?
Answers
Answered by
1
when ethanol is exposed to air over long periods of time, the oxygen that is present in air will react with it to produce ethanoic acid and water. This exact reaction is the reason why wine goes sour when left in open air for long periods of time.
and a precaution, NEVER DRINK AN EXPOSED BEER AS IT IS EXTREMELY HARMFUL FOR HEALTH.
Answered by
0
Answer:
Oxidation of ethanol (CH3CH2OH) to ethanoic acid (CH3COOH)
Explanation:
When beer left open over night, it exposes it to oxygen, which in turn oxidises ethanol to ethanoic acid. As ethanoic acid is the main constituent of vinegar, hence it becomes sour....
The oxidation process takes place as follows :
- First ethanol is partially oxidised into ethanal (CH3CHO)
CH3CH2OH + O2 = CH3CHO + H2O
2. Then ethanal is oxidised to ethanoic acid
CH3CHO + [O] = CH3COOH
Similar questions