Question : The substance most commonly used as a food preservative is
Option 1: sodium carbonate
Option 2: tartaric acid
Option 3: acetic acid
Option 4: sodium salt of benzoic acid
Correct Answer: sodium salt of benzoic acid
Solution : The correct answer is sodium salt of benzoic acid .
A substance used to keep food in good condition is known as a preservative. Sodium salt of benzoic acid is a preservative used in food products. It provides an acidic pH of 2.5 to 4.0. With this low pH, it reduces the activity of microbes and prevents them from rotting and the activity of bacteria and fungi.
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