Which of the following contains ethanoic acid? A. Lemon juice B. Orange juice C. White vinegar D. Tomato

Lemon juice
Orange juice
White vinegar
Tomato

The correct answer is C. White vinegar.

Ethanoic acid, also known as acetic acid, is a weak organic acid found in vinegar. It is a colorless liquid with a sharp, sour taste. Vinegar is made by fermenting alcoholic beverages such as wine or cider. The ethanol in the beverage is converted into ethanoic acid by bacteria.

Lemon juice and orange juice both contain citric acid, which is a different type of acid. Tomato juice contains citric acid and malic acid.

White vinegar is a common ingredient in cooking. It is also used as a cleaning agent and a preservative.