A solution conducts electricity well, but the same substance in dry state does not. What is the most suitable reason?
Answer and explanation
Correct answer: Mobile ions are available in aqueous state
Electrical conduction in an electrolyte occurs through the movement of charged particles. When many acids, bases, or salts dissolve in water, they separate into mobile positive and negative ions, which carry current through the solution. In the dry solid, these ions are generally fixed in a lattice and cannot move freely. Therefore, option A is correct; the other choices confuse conductivity with electron speed, colour, or metallic conversion.
Frequently asked questions
What is the correct answer to this question?
Mobile ions are available in aqueous state
Why is this the correct answer?
Electrical conduction in an electrolyte occurs through the movement of charged particles. When many acids, bases, or salts dissolve in water, they separate into mobile positive and negative ions, which carry current through the solution. In the dry solid, these ions are generally fixed in a lattice and cannot move freely. Therefore, option A is correct; the other choices confuse conductivity with electron speed, colour, or metallic conversion.
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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