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What chemical risk can occur by storing curd in a copper vessel?

Answer and explanation

Correct answer: Acids can react with copper and form harmful salts

The governing concept is the reaction of acidic food with a reactive metal surface. Curd contains lactic acid and is therefore acidic. If it is stored for a long time in a copper vessel, the acid may react with copper and form copper compounds or salts that can contaminate the food. This is why acidic foods are not normally stored in copper or brass vessels. Hence option A is correct; curd is not acid-free and copper is not universally safe.

Related tags

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

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