Which of the following solution will have highest specific conductance?

Options

A. `0.01M CH_(3)COOH`
B. `0.01M NH_(4)OH`
C. `0.01M NaCl`
D. `0.01M K_(2)SO_(4)`

Answer

To determine which solution has the highest specific conductance, we need to analyze the dissociation of each compound in solution and the number of ions produced. Specific conductance is directly related to the concentration of ions in solution; more ions lead to higher conductance.

### Step-by-Step Solution:

1. **Identify the Compounds**: The compounds given are acetic acid (CH₃COOH), ammonium hydroxide (NH₄OH), sodium chloride (NaCl), and potassium sulfate (K₂SO₄).

2. **Determine the Dissociation of Each Compound**:
- **Acetic Acid (CH₃COOH)**:
- Dissociates into: CH₃COO⁻ + H⁺
- Total ions produced = 2
- **Ammonium Hydroxide (NH₄OH)**:
- Dissociates into: NH₄⁺ + OH⁻
- Total ions produced = 2
- **Sodium Chloride (NaCl)**:
- Dissociates into: Na⁺ + Cl⁻
- Total ions produced = 2
- **Potassium Sulfate (K₂SO₄)**:
- Dissociates into: 2K⁺ + SO₄²⁻
- Total ions produced = 3

3. **Compare the Number of Ions**:
- Acetic Acid: 2 ions
- Ammonium Hydroxide: 2 ions
- Sodium Chloride: 2 ions
- Potassium Sulfate: 3 ions

4. **Determine Specific Conductance**:
- Specific conductance is higher with more ions in solution.
- Since K₂SO₄ produces the highest number of ions (3), it will have the highest specific conductance.

5. **Conclusion**:
- The solution with the highest specific conductance is **0.01 molar K₂SO₄**.

### Final Answer:
The solution with the highest specific conductance is **0.01 molar K₂SO₄**.