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What is the chemical reason for avoiding storage of curd in copper or brass vessels?

Answer and explanation

Correct answer: Acids in curd can react with the metal to form harmful salts

Curd contains lactic acid, so it is mildly acidic. If it remains in contact with copper or brass, the acid may slowly react with the metal surface and produce dissolved metal compounds or salts. In excessive or unsuitable exposure, such contamination can make the food unsafe, which is why reactive metal vessels are avoided for acidic foods. A is correct; B and C describe no valid general reaction, and D is false because curd does contain acid.

Related tags

Food AcidsMetal VesselsChemical SafetyAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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