Assertion :- Lyophilic sol is more stable than lyophobic sol.
Reason :- Lyophilic sol have greater solvation energy then lyophobic sol.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are False.

Answer

To solve the assertion and reason question regarding lyophilic and lyophobic sols, we can break down the concepts step by step.

### Step 1: Understand the Definitions
- **Lyophilic Sol**: This type of sol is solvent-loving. It has a strong affinity for the solvent and is generally more stable.
- **Lyophobic Sol**: This type of sol is solvent-hating. It has little to no affinity for the solvent and is generally less stable.

**Hint**: Remember that "lyophilic" means "loving" and "lyophobic" means "hating" in relation to the solvent.

### Step 2: Analyze the Assertion
- The assertion states that "Lyophilic sol is more stable than lyophobic sol." This is true because lyophilic sols are more stable due to their strong interactions with the solvent.

**Hint**: Consider the interactions between particles in the sol and the solvent to determine stability.

### Step 3: Analyze the Reason
- The reason states that "Lyophilic sol has greater solvation energy than lyophobic sol." Solvation energy refers to the energy released when solute particles are surrounded by solvent molecules. Since lyophilic sols interact favorably with the solvent, they indeed have greater solvation energy compared to lyophobic sols.

**Hint**: Think about how energy changes when a solute dissolves in a solvent and how that relates to stability.

### Step 4: Evaluate the Relationship Between Assertion and Reason
- Both the assertion and the reason are true. The reason correctly explains why the assertion is true: the greater solvation energy of lyophilic sols contributes to their increased stability compared to lyophobic sols.

**Hint**: Check if the reason logically supports the assertion.

### Conclusion
Based on the analysis:
- Both the assertion and the reason are true.
- The reason is a correct explanation of the assertion.

Therefore, the correct answer is: **Both assertion and reason are true, and reason is a correct explanation of assertion.**

### Final Answer
The correct option is: **Both assertion and reason are true, and reason is a correct explanation of assertion.**