Q3. Which acid is present in vinegar?
C. Ethanoic acid — CORRECT 🍶
Ethanoic acid (also called acetic acid, CH₃COOH) is the weak organic acid that gives vinegar its sour taste and smell. It's only about 4–8% of vinegar — the rest is water. It's mild enough to put on your salad but strong enough to make your nose wrinkle.
13August 25, 2026 3K 5
