What statement can be cited for 10% sodium chloride solution and 10% sugar solution present?

Options

A. Both have equal OP
B. The concentration of sodium chloride solution will be less than concentration of sugar solution
C. The OP of sugar solution will be higher than OP of sodium chloride solution
D. DPD of sodium chloride solution will be higher than DPD of sugar solution

Answer

To analyze the statement regarding a 10% sodium chloride solution and a 10% sugar solution, we need to understand the concepts of diffusion pressure deficit (DPD) and osmotic pressure (O.P.) in relation to solute particles in the solutions.

### Step-by-Step Solution:

1. **Understanding Diffusion Pressure Deficit (DPD)**:
- DPD is defined as the difference between the osmotic pressure of the solution and the pressure exerted by the solvent. It indicates how much the presence of solute affects the movement of water.
- DPD is directly proportional to the concentration of solute particles in the solution.

**Hint**: Remember that DPD increases with more solute particles in the solution.

2. **Analyzing Sodium Chloride (NaCl) Solution**:
- When NaCl dissolves in water, it dissociates into two ions: Na⁺ and Cl⁻. Therefore, a 10% NaCl solution effectively has a higher number of solute particles because each molecule of NaCl produces two ions.
- This means that the effective concentration of solute particles in a 10% NaCl solution is greater than that of a 10% sugar solution.

**Hint**: Consider how many particles are produced when a solute dissolves in water.

3. **Analyzing Sugar Solution**:
- Sugar (sucrose) does not dissociate into ions when dissolved in water. Therefore, a 10% sugar solution contains only the original sugar molecules.
- This results in a lower number of effective solute particles compared to the NaCl solution.

**Hint**: Think about whether the solute breaks down into smaller particles when dissolved.

4. **Comparing Osmotic Pressure (O.P.)**:
- Since osmotic pressure is related to the number of solute particles, the 10% NaCl solution will have a higher osmotic pressure than the 10% sugar solution due to the presence of more solute particles (2 for every NaCl molecule).
- Therefore, the osmotic pressure of the sugar solution will be lower than that of the sodium chloride solution.

**Hint**: Recall that osmotic pressure is higher when there are more solute particles in the solution.

5. **Conclusion on DPD**:
- Given that the DPD is higher when there is a greater concentration of solute particles, the DPD of the sodium chloride solution will also be higher than that of the sugar solution.
- Thus, the statement that "the DPD of sodium chloride will be higher than the DPD of sugar solution" is correct.

**Hint**: DPD is a measure of how much solute affects the movement of water; more solute means higher DPD.

### Final Answer:
The correct statement is that the DPD of sodium chloride will be higher than the DPD of sugar solution.