A: Nylon -6 is obtained by heating caprolactum with water.
R: It is used for making bristles for brushes.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark 1.
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark 2.
C. If Assertion is true statement but Reason is false, then mark 3.
D. If both Assertion and Reason are false statements the mark 4.

Answer

To analyze the given assertion and reason, we will break down the information step by step.

### Step 1: Understanding the Assertion
The assertion states that "Nylon-6 is obtained by heating caprolactam with water."

- **Explanation**:
- Caprolactam is a cyclic amide (lactam) with a seven-membered ring structure.
- When caprolactam is heated in the presence of water, it undergoes hydrolysis and polymerization to form Nylon-6, a type of polyamide.
- The reaction typically requires high temperatures (around 533 K) and is carried out in an inert atmosphere (like nitrogen) to prevent unwanted reactions.

### Step 2: Understanding the Reason
The reason states that "It is used for making bristles for brushes."

- **Explanation**:
- Nylon-6 is indeed used in various applications, including the production of bristles for brushes.
- Its properties, such as durability, flexibility, and resistance to wear, make it suitable for such applications.

### Step 3: Evaluating the Truth of Assertion and Reason
- **Assertion**: True (Nylon-6 is obtained from caprolactam and water).
- **Reason**: True (Nylon-6 is used for making bristles for brushes).

### Step 4: Conclusion
Both the assertion and the reason are true. However, the reason does not provide a correct explanation for the assertion. The assertion is about the synthesis of Nylon-6, while the reason discusses one of its applications.

### Final Answer
- Assertion (A) is true.
- Reason (R) is true, but it does not explain the assertion.