the stability of lyophilic colloids is due to

Options

A. Polar nature of dispersion medium
B. Large size of the particle
C. Small size of the particles
D. Layer of dispersion medium of the particles

Answer

**Step-by-Step Solution:**

1. **Understanding Colloids**:
- A colloid is a mixture where one substance is dispersed evenly throughout another. This can include solid particles in a liquid or gas, or liquid droplets in a solid or gas.

2. **Defining Lyophilic Colloids**:
- Lyophilic colloids are a specific type of colloid where the dispersed particles have a strong affinity for the dispersion medium (the liquid in which they are dispersed). This affinity leads to a stable colloidal solution.

3. **Stability Factors**:
- The stability of lyophilic colloids is primarily due to the strong interactions between the dispersed particles and the dispersion medium. These interactions prevent the particles from aggregating or settling out of the solution.

4. **Examples of Lyophilic Colloids**:
- Common examples include starch, gum, gelatin, and metal sols in water. These substances can be easily prepared by simply mixing them with the liquid, sometimes with the addition of heat.

5. **Key Characteristics**:
- Lyophilic colloids are reversible, meaning they can return to their original state after being disturbed. They do not easily precipitate or coagulate due to the strong attraction forces at play.

6. **Identifying the Correct Answer**:
- The stability of lyophilic colloids is attributed to the layer of dispersion medium around the particles, which is a result of extensive solvation. This solvation creates a protective layer that keeps the particles stable in the solution.

7. **Conclusion**:
- Therefore, the correct answer to the question "the stability of lyophilic colloids is due to?" is the layer of dispersion medium around the particles.

---