In which condition can a neutralisation reaction result in a nearly neutral solution?
Answer and explanation
Correct answer: When acid and base react in suitable amounts
The governing concept is neutralisation, in which an acid reacts with a base to form salt and water. If the acid and base are present in suitable, approximately equivalent amounts, their acidic and basic effects largely cancel, giving a nearly neutral solution; therefore A is correct. Only acid or only base leaves an excess, while adding a metal is a different reaction and does not guarantee neutrality.
Frequently asked questions
What is the correct answer to this question?
When acid and base react in suitable amounts
Why is this the correct answer?
The governing concept is neutralisation, in which an acid reacts with a base to form salt and water. If the acid and base are present in suitable, approximately equivalent amounts, their acidic and basic effects largely cancel, giving a nearly neutral solution; therefore A is correct. Only acid or only base leaves an excess, while adding a metal is a different reaction and does not guarantee neutrality.
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.