A polymer containing nitrogen is

Options

A. Bakelite
B. Dacron
C. Rubber
D. Nylon - 6, 6

Answer

To determine which polymer contains nitrogen, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Polymers**:
- A polymer is a large molecule composed of repeating structural units (monomers). The presence of nitrogen in a polymer depends on whether its monomers contain nitrogen.

2. **Analyzing Option 1: Bakelite**:
- Bakelite is formed from phenol and formaldehyde.
- **Phenol Structure**: C6H5OH (contains no nitrogen).
- **Formaldehyde Structure**: HCHO (contains no nitrogen).
- **Conclusion**: Since neither monomer contains nitrogen, Bakelite does not contain nitrogen.

3. **Analyzing Option 2: Decaron**:
- Decaron is formed from ethylene glycol and terephthalic acid.
- **Ethylene Glycol Structure**: HO-CH2-CH2-OH (contains no nitrogen).
- **Terephthalic Acid Structure**: C6H4(COOH)2 (contains no nitrogen).
- **Conclusion**: Since neither monomer contains nitrogen, Decaron does not contain nitrogen.

4. **Analyzing Option 3: Rubber**:
- Rubber is primarily a polymer of 2-methyl-1,3-butadiene.
- **Structure of 2-Methyl-1,3-butadiene**: CH2=C(CH3)-CH=CH2 (contains no nitrogen).
- **Conclusion**: Since the monomer does not contain nitrogen, rubber does not contain nitrogen.

5. **Analyzing Option 4: Nylon 6-6**:
- Nylon 6-6 is formed from adipic acid and hexamethylenediamine.
- **Adipic Acid Structure**: HOOC-(CH2)4-COOH (contains no nitrogen).
- **Hexamethylenediamine Structure**: H2N-(CH2)6-NH2 (contains nitrogen).
- **Conclusion**: Since one of the monomers (hexamethylenediamine) contains nitrogen, Nylon 6-6 contains nitrogen.

6. **Final Answer**:
- The polymer that contains nitrogen is **Nylon 6-6** (Option 4).