Question

Which of the following is used as a preservative to preserve processed food?

• A. Sodium hypochlorite
• B. Saccharin
• C. Diclofenac sodium
• D. Sodium metabisulphite

Answer 1

The correct option is D Sodium metabisulphite

Sodium metabisulphite is an inorganic compound of formula $N{a}_2{S}_2{O}_5$. It is used as a preservative agent, disinfectant and antioxidant.

Whereas, saccharin is an artificial sweetener, diclofenac sodium is used to relieve joint pain and sodium hypochlorite is used as a disinfectant.