Which of the following polymer is an example of fibre ?

Options

A. Silk
B. Nylon - 6 , 6
C. Dacron
D. All of these

Answer

To determine which of the following polymers is an example of fiber, we will analyze each option provided.

### Step 1: Identify the polymers
We have four options (A, B, C, D) that we need to evaluate to see if they are fibers.

### Step 2: Analyze each option
1. **Silk**:
- Silk is a natural protein fiber produced by silkworms. It is composed mainly of fibroin, which is a protein polymer. Therefore, silk is indeed an example of a fiber.

2. **Nylon 6-6**:
- Nylon 6-6 is a synthetic polymer that belongs to the polyamide family. It is widely used in textiles and is known for its strength and durability. As a synthetic fiber, nylon 6-6 is also classified as a fiber.

3. **Dacron**:
- Dacron is a brand name for a type of polyester fiber. It is commonly used in clothing, home furnishings, and industrial applications. Like the others, Dacron is also an example of a fiber.

### Step 3: Conclusion
Since all three options (silk, nylon 6-6, and Dacron) are examples of fibers, we can conclude that the correct answer is option D: "All of these."

### Final Answer:
The correct option is D: All of these.

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