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Why is it safer to add acid slowly into water while diluting acid?

Answer and explanation

Correct answer: Heat spreads gradually and splashing risk decreases

Dilution of concentrated acid with water is highly exothermic, so a considerable amount of heat can be released. Adding acid slowly to a larger quantity of water allows the heat to disperse through the water and prevents a sudden local temperature rise. This reduces violent boiling and dangerous splashing. Option A is correct. The safe laboratory rule is always ‘add acid to water’, never water to concentrated acid, with stirring and suitable protection.

Related tags

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

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