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Why can adding water directly to concentrated acid cause an accident?

Answer and explanation

Correct answer: Because sudden heat release can cause acid to splash

When water is added directly to concentrated acid, the small amount of water may absorb heat very rapidly. It can become hot or boil suddenly, forcing concentrated acid out of the container as droplets. This can cause severe burns, so the safer rule is to add acid slowly to water while stirring. Option A correctly explains the accident; the other statements contradict the exothermic process.

Related tags

Concentrated-AcidDilutionSafetyExothermicClass10AcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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