Correct Answer: Benzoic Acid
Subject: chemistry
Explanation: • <b>Key Fact</b> Benzoic Acid (often used in the form of Sodium Benzoate) is widely used as a food preservative. • <b>Supporting Detail</b> It prevents the spoilage of food items by inhibiting microbial growth like bacteria, yeast, and fungi. • <b>Related Concept</b> Naturally, Benzoic acid occurs in grass and leaves. • <b>Why wrong options are wrong</b> Nitric acid is for explosives; Oxalic acid is for removing rust stains; Phosphoric acid is a flavoring in cola. • <b>Exam Trick</b> Benzoic = 'Ban's-zoology' (Bans living microbes in your food). • <b>Additional Info</b> Acetic acid (vinegar) is another common organic acid used extensively as a food preservative.
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