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.
Frequently asked questions
What is the correct answer to this question?
Add acid slowly to water
Why is this the correct answer?
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.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
