Multiple choice

Which one of the following chemicals is a food preservative?

  1. Sodium carbonate

  2. Sodium bicarbonate

  3. Sodium benzoate

  4. Sodium thiosulphate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sodium benzoate is a widely used food preservative that inhibits the growth of bacteria, yeasts, and molds in acidic foods and beverages. It is particularly effective in soft drinks, pickles, and sauces. Sodium carbonate and bicarbonate are not preservatives; sodium thiosulphate is used in photography and medicine.

Keep practicing — related questions