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Why is storing curd in a copper vessel not considered safe?

Answer and explanation

Correct answer: Acids in curd can react with copper

The governing concept is the reaction of acids with metals. Curd contains lactic acid and is therefore acidic. On prolonged contact, the acid may react with copper and form copper compounds or salts that can contaminate the food and make it unsafe. Hence option A is correct. Option C is false because curd does contain acid, while B and D describe changes that have no chemical basis in this situation.

Related tags

Food AcidsCopper VesselChemical SafetyAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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