Which is the correct description of a weak acid?
Answer and explanation
Correct answer: It ionises partially in water
The governing concept is acid strength, which depends on the extent of ionisation in water. A weak acid, such as ethanoic acid, ionises only partially and establishes an equilibrium between molecules and ions. Therefore, option A is correct. Weak does not mean insoluble, neutral, or basic; a weak acid can dissolve and still produce hydrogen or hydronium ions and show acidic properties.
Frequently asked questions
What is the correct answer to this question?
It ionises partially in water
Why is this the correct answer?
The governing concept is acid strength, which depends on the extent of ionisation in water. A weak acid, such as ethanoic acid, ionises only partially and establishes an equilibrium between molecules and ions. Therefore, option A is correct. Weak does not mean insoluble, neutral, or basic; a weak acid can dissolve and still produce hydrogen or hydronium ions and show acidic properties.
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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