The commercial name of polyacrylonitrile is

Options

A. dacron
B. orlon ( arilan )
C. PVC
D. bakelite .

Explanation

To answer the question regarding the commercial name of polyacrylonitrile, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Polymer**: The question asks for the commercial name of polyacrylonitrile. Polyacrylonitrile is a synthetic polymer that is primarily used in the production of fibers.

2. **Understand the Options**: The options provided are Dacron, Orlon, Acrylan, PVC, and Bakelite. We need to determine which of these is the commercial name for polyacrylonitrile.

3. **Recall the Commercial Names**: Polyacrylonitrile is known for its use in textiles and is commonly marketed under specific brand names. The two most recognized commercial names for polyacrylonitrile are "Orlon" and "Acrylan".

4. **Select the Correct Answer**: Among the options given, "Orlon" and "Acrylan" are both correct as they refer to polyacrylonitrile. However, since the question asks for a singular commercial name, we can choose either.

5. **Final Answer**: The commercial name of polyacrylonitrile is **Orlon** or **Acrylan**.