Why is hydrochloric acid called a strong acid?
Answer and explanation
Correct answer: It ionises almost completely in water
The governing concept is acid strength, which depends on the extent of ionisation in water, not simply on concentration. Hydrochloric acid ionises almost completely, producing a high concentration of H₃O⁺ and Cl⁻ ions. Therefore option B is correct. Partial ionisation describes a weak acid, insolubility is false for its aqueous solutions, and HCl is an acid rather than a base.
Frequently asked questions
What is the correct answer to this question?
It ionises almost completely in water
Why is this the correct answer?
The governing concept is acid strength, which depends on the extent of ionisation in water, not simply on concentration. Hydrochloric acid ionises almost completely, producing a high concentration of H₃O⁺ and Cl⁻ ions. Therefore option B is correct. Partial ionisation describes a weak acid, insolubility is false for its aqueous solutions, and HCl is an acid rather than a base.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
