Which one of the following acid is used to preserve the medicine and food?

Correct option is B

The correct answer is: (b) Benzoic acid

Explanation:

• Benzoic acid is widely used as a preservative in food and medicines.

• It prevents the growth of bacteria, yeast, and fungi, thereby extending shelf life.

Information Booster:

• Benzoic acid is a simple aromatic carboxylic acid.

• It is commonly found in acidic food items like fruit juices, jams, and soft drinks.

• It is listed as E210 in the European food additive code.

• Works best in acidic environments (pH below 4.5).

• Its sodium salt, sodium benzoate, is also commonly used as a preservative.

• Approved by WHO and FDA for limited food use.

Additional Information:

• Citric acid: Found in citrus fruits; used mainly as a flavoring agent and to maintain pH balance, not primarily for preservation.

• Formic acid: Used as a preservative in animal feed and as an antibacterial agent, but not in human food or medicine.

• Acetic acid: The main component of vinegar, used for pickling and flavor, has mild preservative properties but less effective than benzoic acid in processed foods.