Assertion :- Associated colloids are formed by aggregation of large no. of ions in `conc^(n)` solution of Soap.
Reason :- Because associated colloids have more than one colloidal particles.

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 question regarding the assertion and reason about associated colloids, we can break it down step by step.

### Step 1: Understand the Assertion
The assertion states that "Associated colloids are formed by aggregation of a large number of ions in a concentrated solution of soap."

- **Explanation**: Associated colloids, such as soap, form when molecules aggregate in a solution. In concentrated soap solutions, the soap molecules (which can act as surfactants) aggregate to form micelles, which are larger than individual molecules.

### Step 2: Analyze the Reason
The reason states that "Associated colloids have more than one colloidal particle."

- **Explanation**: This statement is true. Associated colloids consist of aggregates of multiple particles (like micelles), but it does not directly explain why they form from a large number of ions in concentrated soap solutions.

### Step 3: Evaluate the Relationship
Now we need to evaluate if the reason provided is a correct explanation for the assertion.

- The assertion discusses the formation of associated colloids due to aggregation in concentrated soap solutions, while the reason simply states that associated colloids consist of multiple particles. The reason does not explain why the aggregation occurs in concentrated soap solutions.

### Conclusion
Based on the analysis:
- The assertion is true.
- The reason is true, but it does not correctly explain the assertion.

Thus, the correct answer is that both the assertion and reason are true, but the reason is not a correct explanation of the assertion.

### Final Answer
The correct option is: Both assertion and reason are true, but reason is not a correct explanation of the assertion.

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