What is the chemical name for vinegar's active ingredient?
A
Formic acid
B
Citric acid
C
Ethanol
D
Acetic acid
Correct Answer: Option D — Acetic acid
Explanation:
The active ingredient in vinegar is acetic acid, a weak organic acid produced through the fermentation of ethanol by acetic acid bacteria. It gives vinegar its distinctive sour taste and preservative properties.