In which case is an acidic solution most likely to have the highest electrical conductivity?
Answer and explanation
Correct answer: When the acid is highly ionised in water
Electrical conductivity in an aqueous solution is caused by mobile charged particles, especially hydrogen ions and the corresponding negative ions. A highly ionised acid produces a larger concentration of such mobile ions in water, so it carries electric current more effectively. A dry gas, a solid, or a substance producing no ions cannot provide comparable ionic conduction. Therefore, option A is correct.
Frequently asked questions
What is the correct answer to this question?
When the acid is highly ionised in water
Why is this the correct answer?
Electrical conductivity in an aqueous solution is caused by mobile charged particles, especially hydrogen ions and the corresponding negative ions. A highly ionised acid produces a larger concentration of such mobile ions in water, so it carries electric current more effectively. A dry gas, a solid, or a substance producing no ions cannot provide comparable ionic conduction. Therefore, option A is correct.
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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