Two acids have the same concentration. The first acid is a good conductor of electricity and the second is a weak conductor. What is the best reason?
Answer and explanation
Correct answer: The first acid forms more ions
Electrical conduction in an aqueous acid solution depends on the number and mobility of charged particles, not on colour. At equal concentration, the acid that ionises more completely produces more mobile H₃O⁺ and counter-ions, so it conducts better; this is the behaviour of a stronger acid relative to the other. A weak acid ionises only partially. Thus A gives the correct reason, while B, C, and D are irrelevant or false.
Frequently asked questions
What is the correct answer to this question?
The first acid forms more ions
Why is this the correct answer?
Electrical conduction in an aqueous acid solution depends on the number and mobility of charged particles, not on colour. At equal concentration, the acid that ionises more completely produces more mobile H₃O⁺ and counter-ions, so it conducts better; this is the behaviour of a stronger acid relative to the other. A weak acid ionises only partially. Thus A gives the correct reason, while B, C, and D are irrelevant or false.
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.
