Question

Vinegar is a solution of:

• A. 5% - 8% acetic acid in water.
• B. 50% - 60% acetic acid in water.
• C. 50% - 60% acetic acid in alcohol.
• D. 5% - 8% acetic acid in alcohol.

Answer 1

The correct option is A 5% - 8% acetic acid in water.

Vinegar consists of acetic acid $\left({\text{CH}}_3\text{COOH}\right)$, water and trace amounts of other chemicals, which may include flavourings. The concentration of the acetic acid is variable. Distilled vinegar contains 5-8% acetic acid.