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__________ is commonly used as a food preservative.(a) Sodium benzoate(b) Potassium benzoate(c) Terephthalic acid(d) Acetic acidThe question was posed to me in an online quiz.Origin of the question is Uses of Carboxylic Acids in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

Answer»

The correct option is (a) Sodium benzoate

Easy explanation: When C6H5COOH reacts with NaOH, a SALT CALLED sodium benzoate is FORMED. When an aqueous salt SOLUTION is prepared from this product, it acts as a PRESERVATIVE. It is identified by the code E211.



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