What is the safe method for diluting concentrated acid?
Answer and explanation
Correct answer: Add acid slowly to water
Dilution of concentrated acid releases heat. If a small amount of water is poured into a large volume of acid, the water can heat suddenly, boil, and scatter corrosive acid droplets. The safer method is to add acid slowly to a larger volume of water with continuous stirring, allowing heat to disperse. Therefore option B is correct. Heating on a flame or mixing without proper equipment is dangerous and unacceptable.
Frequently asked questions
What is the correct answer to this question?
Add acid slowly to water
Why is this the correct answer?
Dilution of concentrated acid releases heat. If a small amount of water is poured into a large volume of acid, the water can heat suddenly, boil, and scatter corrosive acid droplets. The safer method is to add acid slowly to a larger volume of water with continuous stirring, allowing heat to disperse. Therefore option B is correct. Heating on a flame or mixing without proper equipment is dangerous and unacceptable.
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.
