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Why should acid always be added slowly to water while diluting?

Answer and explanation

Correct answer: To avoid sudden heat and splashing

Dilution of a concentrated acid is strongly exothermic: hydration of acid particles releases considerable heat. If water is poured rapidly into concentrated acid, the small amount of water may heat suddenly, boil, and throw corrosive acid droplets outward. Adding acid slowly to a larger volume of water, with stirring, spreads the heat safely. Thus option A states the correct laboratory safety principle.

Related tags

Acid DilutionSafetyExothermicAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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