Question

Which of the following cannot be used as a food preservative?
A. sodium metabisulphate
B. sodium hydroxide
C. sodium benzoate
D. citric acid

Answer 1

Answer:

The answer is sodium benzoate. Option (C)

Answer 2

B. sodium hydroxide

Explanation:

Processing of food to prevent their spoilage and to retain their nutritive value for period is called food preservation. Food can be preserved by using salt, sugar, oil and vinegar or by treating food with heat or cold. Appropriate storage and packaging is essential for food preservation to be effective.

Some of the chemical preservatives commonly used in food are sodium benzoate, sodium nitrite and sodium metabisulphite.

Sodium Hydroxide is not a preservative.

Option B is the answer.