Which option correctly explains the difference between a strong acid and a weak acid?
Answer and explanation
Correct answer: A strong acid ionises almost completely in water
The strength of an acid describes its degree of ionisation in water, not simply the amount of acid present. A strong acid, such as hydrochloric acid in an aqueous solution, ionises almost completely, whereas a weak acid ionises only partially and establishes an equilibrium. Therefore option A is correct. A weak acid remains an acid, strong acids can dissolve in water, and both types produce ions to some extent, so B, C, and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
A strong acid ionises almost completely in water
Why is this the correct answer?
The strength of an acid describes its degree of ionisation in water, not simply the amount of acid present. A strong acid, such as hydrochloric acid in an aqueous solution, ionises almost completely, whereas a weak acid ionises only partially and establishes an equilibrium. Therefore option A is correct. A weak acid remains an acid, strong acids can dissolve in water, and both types produce ions to some extent, so B, C, and D are incorrect.
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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