Which of the following statement is incorrect about colloidal solution.

Options

A. Lyophobic sols are more stable than lyophilic sols
B. Lyophilic colloids have a unique property of protecting lyophobic colloids
C. Lyophilic colloids are more soluble then lyophobic colloids.
D. None of these

Answer

To determine which statement is incorrect about colloidal solutions, we need to analyze the properties of liophilic and liophobic colloids.

### Step-by-Step Solution:

1. **Understanding Liophilic and Liophobic Colloids**:
- **Liophilic Colloids**: These colloids have a strong affinity between the dispersed phase (the particles) and the dispersion medium (the liquid). This strong attraction leads to greater stability and solubility.
- **Liophobic Colloids**: These colloids have little to no affinity between the dispersed phase and the dispersion medium. As a result, they are less stable and less soluble.

**Hint**: Remember that "liophilic" means "loving" for the medium, while "liophobic" means "fearing" the medium.

2. **Analyzing the Statements**:
- **Statement 1**: "Liophobic salts are more stable than liophilic salts."
- This statement is incorrect. Liophilic salts are more stable due to the strong attraction with the dispersion medium.

- **Statement 2**: "Liophilic colloids have a unique property of protecting liophobic colloids."
- This statement is correct. Liophilic colloids can stabilize liophobic colloids when mixed.

- **Statement 3**: "Liophilic colloids are more soluble than liophobic colloids."
- This statement is also correct. The strong attraction in liophilic colloids allows them to be more soluble in the dispersion medium.

**Hint**: Evaluate each statement based on the definitions of liophilic and liophobic colloids.

3. **Conclusion**:
- The incorrect statement is **Statement 1**: "Liophobic salts are more stable than liophilic salts." This is false because liophilic colloids are indeed more stable due to their strong interaction with the dispersion medium.

**Final Answer**: The incorrect statement is **Statement 1**.