Concept:Strong electrolytes are substances that ionize completely when dissolved in a solvent.
Explanation:In solution, a strong electrolyte breaks fully into its constituent ions.
This complete dissociation produces a high concentration of free ions.
These free ions allow the solution to conduct electricity efficiently.
Therefore, option A is false because strong electrolytes conduct electricity in the molten state.
Option C is false because strong electrolytes are typically ionic, not non-polar.
Option D is false because strong electrolytes do not partially dissociate.
Answer:Option B — They completely dissociate into ions in solution.