Why does the acidic effect decrease when an acidic solution is diluted with water?
Answer and explanation
Correct answer: The number of hydrogen ions per unit volume decreases
Dilution increases the total volume without removing all the acid particles. The hydrogen or hydronium ions become distributed through a larger volume, so their concentration per unit volume decreases. Consequently, the acidic effect becomes weaker, although the solution may still be acidic. The ions do not disappear, and dilution alone does not necessarily make the solution basic.
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What is the correct answer to this question?
The number of hydrogen ions per unit volume decreases
Why is this the correct answer?
Dilution increases the total volume without removing all the acid particles. The hydrogen or hydronium ions become distributed through a larger volume, so their concentration per unit volume decreases. Consequently, the acidic effect becomes weaker, although the solution may still be acidic. The ions do not disappear, and dilution alone does not necessarily make the solution basic.
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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