Explanation:
As it is known that an electrolyte in which solute particles completely dissociate into ions in a solvent is known as a strong electrolyte.
For example, NaCl is an ionic compound and when it is added to water then NaCl will completely dissociate into sodium and chloride ions.
Therefore, this solution will be able to conduct electricity. Whereas in solid NaCl there will be no presence of ions. As a result, solid NaCl is not able to conduct electricity.
But when sugar is added to water then it will not dissociate into ions. Hence, a sugar solution is not able to conduct electricity.
Thus, we can conclude that NaCl solution will be able to conduct electricity.