Identify the one which does not belong to the same class as other three

Options

A. Terylene
B. Polythene
C. Teflon
D. PVC

Answer

To solve the question of identifying which polymer does not belong to the same class as the others, we will follow these steps:

### Step 1: Understand the Types of Polymers
Polymers can be classified based on their properties and intermolecular forces into four main categories:
- **Thermoplastics**: These are polymers that can be melted and reshaped multiple times. Examples include polythene, PVC, and Teflon.
- **Thermosetting Polymers**: These polymers harden permanently after being shaped and cannot be remolded.
- **Fibers**: These are polymers that are typically long and thin, used for making textiles. An example is pteriline.
- **Elastomers**: These are polymers that have elastic properties, allowing them to stretch and return to their original shape.

### Step 2: Analyze the Given Options
We have four options:
1. **Pteriline**: A type of polyester and classified as a fiber.
2. **Polythene**: A thermoplastic polymer.
3. **Teflon**: A thermoplastic polymer.
4. **PVC (Polyvinyl Chloride)**: A thermoplastic polymer.

### Step 3: Classify Each Polymer
- **Pteriline**: Classified as a fiber.
- **Polythene**: Classified as a thermoplastic.
- **Teflon**: Classified as a thermoplastic.
- **PVC**: Classified as a thermoplastic.

### Step 4: Identify the Odd One Out
From the classification:
- Pteriline is the only one classified as a fiber.
- Polythene, Teflon, and PVC are all classified as thermoplastics.

### Conclusion
The polymer that does not belong to the same class as the others is **Pteriline**.

### Final Answer
**Pteriline** does not belong to the same class as the other three polymers (Polythene, Teflon, and PVC).

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