What is the safe method for dissolving an acid in water?
Answer and explanation
Correct answer: Acid should be added slowly to water
The governing safety concept is controlled dilution of a concentrated acid. Dissolving acid in water releases heat, so adding acid slowly to a larger quantity of water while stirring allows the heat to disperse and reduces sudden boiling or splashing. Therefore option B is correct. Adding water to concentrated acid can cause the small water layer to heat rapidly and eject corrosive acid.
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What is the correct answer to this question?
Acid should be added slowly to water
Why is this the correct answer?
The governing safety concept is controlled dilution of a concentrated acid. Dissolving acid in water releases heat, so adding acid slowly to a larger quantity of water while stirring allows the heat to disperse and reduces sudden boiling or splashing. Therefore option B is correct. Adding water to concentrated acid can cause the small water layer to heat rapidly and eject corrosive acid.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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