Caprolactam when heated at high temperature in presence of water, gives

Options

A. Dacron
B. Nylon 6
C. Teflon
D. Nylon-6,6

Answer

To solve the question regarding the product formed when caprolactam is heated at high temperature in the presence of water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Caprolactam**:
Caprolactam is a cyclic amide (lactam) with the chemical formula C6H11NO. It consists of a six-membered ring containing one nitrogen atom and one carbonyl group.

2. **Hydrolysis Reaction**:
When caprolactam is heated in the presence of water, it undergoes hydrolysis. This means that the water molecule will react with caprolactam, leading to the opening of the cyclic structure. The reaction can be represented as:
\[ \text{Caprolactam} + \text{H}_2\text{O} \rightarrow \text{NH}_2\text{(CH}_2\text{)}_5\text{COOH} \]
The product of this reaction is 6-aminocaproic acid, which is a linear molecule.

3. **Polymerization**:
The 6-aminocaproic acid can then undergo polymerization. When heated, it can form a polymer through a condensation reaction, where the amino group of one molecule reacts with the carboxylic acid group of another molecule, releasing water. This process leads to the formation of Nylon 6.
\[ n \cdot \text{NH}_2\text{(CH}_2\text{)}_5\text{COOH} \rightarrow \text{[NH(CH}_2\text{)}_5\text{CO]}_n + n \text{H}_2\text{O} \]

4. **Final Product**:
The final product of this reaction is Nylon 6, which is a synthetic polymer made from the polymerization of caprolactam.

### Conclusion:
When caprolactam is heated at high temperature in the presence of water, it produces Nylon 6.