Which of the following is a nitrogen containing polymer ?

Options

A. Polyvinyl chloride
B. Bakelite
C. Nylon
D. Terylene

Answer

To determine which of the following is a nitrogen-containing polymer, we will analyze the structures of the given polymers one by one.

### Step-by-Step Solution:

1. **Identify the First Polymer: Polyvinyl Chloride (PVC)**
- The structure of PVC consists of repeating units of vinyl chloride, which is represented as:
\[ \text{-(CH}_2\text{-CHCl)-} \]
- This structure contains carbon (C), hydrogen (H), and chlorine (Cl) but does not contain nitrogen (N).
- **Conclusion**: PVC is not a nitrogen-containing polymer.

2. **Identify the Second Polymer: Bakelite**
- Bakelite is a phenolic resin, and its structure can be represented as:
\[ \text{(C}_6\text{H}_5\text{)C(OH)CH}_2\text{(OH)C(OH)CH}_2\text{(OH)} \]
- This structure contains carbon (C), hydrogen (H), and oxygen (O) but does not contain nitrogen (N).
- **Conclusion**: Bakelite is not a nitrogen-containing polymer.

3. **Identify the Third Polymer: Nylon 6-6**
- Nylon 6-6 is a type of polyamide, and its structure can be represented as:
\[ \text{-(NH-CH}_2\text{-CO-)}_n \]
- In this structure, we can see that nitrogen (N) is present in the amide linkages.
- **Conclusion**: Nylon 6-6 is a nitrogen-containing polymer.

4. **Identify the Fourth Polymer: Terylene (Dacron)**
- Terylene is a polyester, and its structure can be represented as:
\[ \text{-(C}_6\text{H}_4\text{COO-CH}_2\text{CH}_2\text{O-)}_n \]
- This structure contains carbon (C), hydrogen (H), and oxygen (O) but does not contain nitrogen (N).
- **Conclusion**: Terylene is not a nitrogen-containing polymer.

### Final Answer:
The nitrogen-containing polymer among the options is **Nylon 6-6**.

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