The correct answer is:
C. The solution of salt water will have a higher conductivity than the solution of sugar water.
Here's the reasoning:
- Pure water has very low electrical conductivity because it has very few ions.
- When sugar is dissolved in water, it does not dissociate into ions; it remains as sugar molecules. Therefore, the sugar water will not significantly conduct electricity.
- When salt (sodium chloride) is dissolved in water, it dissociates into sodium ions (Na⁺) and chloride ions (Cl⁻). This increases the number of ions in the solution, which enhances its ability to conduct electricity.
Therefore, the salt water solution will conduct electricity better than the sugar water solution.