Which of the following solutions in water does not conduct electricity?

Options

A. Hydrochloric acid
B. Sodium chloride
C. Glucose
D. Sulphuric acid

Explanation

To determine which of the following solutions in water does not conduct electricity, we need to analyze the dissociation of each solution into ions, as ions are necessary for the conduction of electricity.

### Step-by-Step Solution:

1. **Understanding Electrical Conductivity**:
- Electricity is conducted through the movement of charged particles, specifically ions. Therefore, for a solution to conduct electricity, it must contain ions that can move freely.

2. **Analyzing the First Option: Hydrochloric Acid (HCl)**:
- When HCl is dissolved in water, it dissociates into H⁺ and Cl⁻ ions.
- Since it produces ions, HCl will conduct electricity.

3. **Analyzing the Second Option: Sodium Chloride (NaCl)**:
- When NaCl (common salt) is dissolved in water, it dissociates into Na⁺ and Cl⁻ ions.
- As it also produces ions, NaCl will conduct electricity.

4. **Analyzing the Third Option: Glucose (C₆H₁₂O₆)**:
- When glucose is dissolved in water, it does not dissociate into ions. Instead, it remains as whole molecules.
- Since there are no ions produced, glucose will not conduct electricity.

5. **Analyzing the Fourth Option: Sulfuric Acid (H₂SO₄)**:
- When sulfuric acid is dissolved in water, it dissociates into H⁺ and SO₄²⁻ ions.
- As it produces ions, sulfuric acid will conduct electricity.

6. **Conclusion**:
- Among the given options, glucose is the only solution that does not dissociate into ions and therefore does not conduct electricity.
- The correct answer is **Option C: Glucose**.