Arrange the following polymers in an increasing order of intermolecular forces , fibre, plastic , elastomer .

Options

A. Elastomer `lt` Fibre `lt` Plastic
B. Elastomer `lt` Plastic `lt` Fibre
C. Plastic `lt` Elastomer `lt` Fibore
D. Fibre `lt` Elastomer `lt` Plastic

Answer

To solve the problem of arranging the polymers (fiber, plastic, and elastomer) in increasing order of intermolecular forces, we can follow these steps:

### Step 1: Understand the Types of Polymers
- **Fiber**: These are polymers that have strong intermolecular forces, primarily due to hydrogen bonding. This makes them strong and durable.
- **Plastic**: Plastics have moderate intermolecular forces. They can be made from various types of polymers, and their properties can vary widely, but generally, they have stronger forces than elastomers but weaker than fibers.
- **Elastomer**: These are polymers that exhibit elastic properties and have relatively weak intermolecular forces, primarily Van der Waals forces.

### Step 2: Compare Intermolecular Forces
- **Fiber**: Strongest intermolecular forces due to hydrogen bonding.
- **Plastic**: Moderate intermolecular forces, stronger than elastomers but weaker than fibers.
- **Elastomer**: Weakest intermolecular forces due to Van der Waals interactions.

### Step 3: Arrange in Increasing Order
Based on the strength of intermolecular forces:
1. **Elastomer** (weakest)
2. **Plastic** (moderate)
3. **Fiber** (strongest)

### Final Arrangement
The increasing order of intermolecular forces is:
**Elastomer < Plastic < Fiber**