Wchich is/are correct statement?

Options

A. Lyophilic colloids are irreversible
B. Lyophilic colloids do not migrate in electric field
or migrate in any direction
C. In lyophobic colloids no hydration takes place
D. Lyophilic are more stable and lyophobic less
stable

Answer

To determine which statements about lyophilic and lyophobic colloids are correct, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Lyophilic and Lyophobic Colloids:**
- **Lyophilic Colloids:** These colloids have particles in the dispersed phase that have a strong affinity for the dispersion medium (solvent). They are often referred to as "liquid-loving" colloids.
- **Lyophobic Colloids:** In contrast, these colloids have particles that do not have an affinity for the dispersion medium. They are known as "liquid-hating" colloids.

2. **Analyzing Each Statement:**
- **Statement A:** "Lyophilic colloids are irreversible."
- **Analysis:** This statement is incorrect. Lyophilic colloids are reversible in nature; they can be reformed after being broken down.

- **Statement B:** "Lyophilic colloids do not migrate in electric field or migrate in any direction."
- **Analysis:** This statement is correct. Lyophilic colloids typically do not migrate in an electric field because the particles do not carry a charge.

- **Statement C:** "In lyophobic colloids no hydration takes place."
- **Analysis:** This statement is correct. Lyophobic colloids do not undergo significant hydration due to their lack of affinity for the solvent.

- **Statement D:** "Lyophilic are more stable and lyophobic are less stable."
- **Analysis:** This statement is also correct. Lyophilic colloids are generally more stable, while lyophobic colloids require stabilizers to maintain their stability.

3. **Conclusion:**
- The correct statements are **B, C, and D**.

### Final Answer:
The correct statements are:
- B: Lyophilic colloids do not migrate in electric field or migrate in any direction.
- C: In lyophobic colloids no hydration takes place.
- D: Lyophilic are more stable and lyophobic are less stable.