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.
Frequently asked questions
What is the correct answer to this question?
Because sudden heat release can cause acid to splash
Why is this the correct answer?
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.
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.
