Assertion : Aldol condensation is usually carried out in dilute
solution of a strong base.
Reason : Concentrated solution of strong base involved Cannizzaro reaction.

Options

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Aldol condensation is usually carried out in dilute solution of a strong base."
- Aldol condensation involves the reaction of aldehydes or ketones that contain alpha-hydrogens. This reaction typically requires a dilute base (like NaOH or Na2CO3) to facilitate the formation of the aldol product (beta-hydroxyaldehyde or beta-hydroxyketone).

2. **Understanding the Reason**:
- The reason states that "Concentrated solution of strong base involved Cannizzaro reaction."
- The Cannizzaro reaction occurs with aldehydes that do not have alpha-hydrogens when treated with a concentrated base (usually a strong alkali like NaOH). However, it is important to note that the Cannizzaro reaction specifically requires a concentrated solution of the base, and it does not apply to aldehydes or ketones that can undergo aldol condensation.

3. **Analyzing the Relationship**:
- The assertion is true because aldol condensation is indeed carried out in a dilute solution of a strong base.
- The reason is false because while the Cannizzaro reaction does involve a strong base, it specifically pertains to aldehydes without alpha-hydrogens and does not relate to the conditions for aldol condensation.

4. **Conclusion**:
- Since the assertion is true and the reason is false, we conclude that the correct answer is that the assertion is true, but the reason is false.

### Final Answer:
- **Assertion**: True
- **Reason**: False