A solution of cane sugar does not conduct electricity, but a solution of sodium chloride is a good conductor.

Options

A. Sugar cane solution is a covalent compound
B. Sodium chloride solution contains free sodium and chloride ions
C. Sodium chloride solution migrate to positively charged electrodes
D. All of the above

Answer

To understand why a solution of cane sugar does not conduct electricity while a solution of sodium chloride does, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Definition of Electrolytes**:
- An electrolyte is a substance that dissociates into ions when dissolved in water, allowing the solution to conduct electricity.

2. **Behavior of Sodium Chloride (NaCl)**:
- When sodium chloride is dissolved in water, it dissociates into sodium ions (Na⁺) and chloride ions (Cl⁻).
- The dissociation can be represented as:
\[ \text{NaCl (s)} \rightarrow \text{Na}^+ (aq) + \text{Cl}^- (aq) \]
- These free-moving ions in the solution allow it to conduct electricity because they can carry electric charge.

3. **Behavior of Cane Sugar (C₁₂H₂₂O₁₁)**:
- Cane sugar, on the other hand, is a covalent compound and does not dissociate into ions when dissolved in water.
- Instead, it remains as whole molecules in solution:
\[ \text{C}_{12}\text{H}_{22}\text{O}_{11} (s) \rightarrow \text{C}_{12}\text{H}_{22}\text{O}_{11} (aq) \]
- Since there are no free ions present in the solution, cane sugar cannot conduct electricity.

4. **Conclusion**:
- Therefore, the key difference is that sodium chloride is an electrolyte that dissociates into ions, allowing it to conduct electricity, while cane sugar is a non-electrolyte that does not dissociate into ions and thus cannot conduct electricity.