The Van't Hoff factor for a solute which does not dissociate or associate in solution is

Options

A. 0
B. 2
C. 3
D. 1

Explanation

To determine the Van't Hoff factor (i) for a solute that does not dissociate or associate in solution, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Van't Hoff Factor**:
The Van't Hoff factor (i) is defined as the ratio of the number of particles in solution after dissociation to the number of formula units initially dissolved in the solution.

2. **Identifying the Type of Solute**:
We are dealing with a solute that is a non-electrolyte. Non-electrolytes do not dissociate into ions when dissolved in a solvent.

3. **Dissociation and Association**:
For a solute that does not dissociate or associate, the degree of dissociation (α) is equal to zero. This means that no particles are formed from the solute.

4. **Applying the Formula**:
The formula for the Van't Hoff factor is given by:
\[ i = 1 + (n - 1) \cdot \alpha \]
where \( n \) is the number of particles the solute would produce upon complete dissociation or association.

5. **Substituting Values**:
Since the solute does not dissociate or associate:
- \( n = 1 \) (it remains as one particle)
- \( \alpha = 0 \) (no dissociation or association)

Substituting these values into the formula:
\[ i = 1 + (1 - 1) \cdot 0 \]
\[ i = 1 + 0 = 1 \]

6. **Conclusion**:
Therefore, the Van't Hoff factor (i) for a solute that does not dissociate or associate in solution is **1**.

### Final Answer:
The Van't Hoff factor for a solute which does not dissociate or associate in solution is **1**.

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