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Which method is safe while mixing acid with water?

Answer and explanation

Correct answer: Add acid slowly to water

The governing safety concept is controlled dilution of acid. Mixing acid with water is exothermic, so heat is released. The safe procedure is to add acid slowly to a larger quantity of water while stirring, allowing the heat to disperse; hence option A is correct. Adding water rapidly to concentrated acid can make a small volume heat suddenly and splatter. Hand mixing and using a hot vessel are unsafe.

Related tags

Acids Bases SaltsAcid DilutionLaboratory SafetyExothermic ProcessClass 10 ScienceAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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