Sodium bebnzoyate is

Options

A. tranquilizer
B. edible colour
C. preservative
D. antibiotic

Answer

**Step-by-Step Solution:**

1. **Identify the Compound**: Sodium benzoate is the sodium salt of benzoic acid. Its chemical formula is C7H5NaO2.

2. **Understand its Function**: Sodium benzoate is primarily used as a preservative in food and beverages. It helps to inhibit the growth of mold, yeast, and some bacteria, thereby extending the shelf life of products.

3. **Chemical Properties**: Sodium benzoate is soluble in water and has a slightly sweet taste. It is non-toxic and generally recognized as safe (GRAS) by the FDA when used in appropriate amounts.

4. **Applications**: Beyond food preservation, sodium benzoate is also used in cosmetics, pharmaceuticals, and as a pH regulator in various industrial applications.

5. **Safety and Regulations**: While sodium benzoate is safe in low concentrations, it can form benzene, a known carcinogen, in the presence of ascorbic acid (vitamin C) under certain conditions. Therefore, its use is regulated in food products.