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While diluting acid, why is it correct to add acid slowly to water instead of water to acid?

Answer and explanation

Correct answer: Heat spreads through a larger volume and splashing is reduced

Dilution of a concentrated acid is highly exothermic because hydration of ions releases heat. Adding acid slowly to a larger volume of water allows the heat to spread through the water and be dissipated more safely. If water is poured into concentrated acid, the small amount of water may heat suddenly, boil, and eject acid droplets. Hence option A expresses the laboratory safety rule and is correct.

Related tags

Acid DilutionLaboratory SafetyExothermic ReactionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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