Nitrocellulose is used as/in

Options

A. Preparaion of bags , ropes
B. Preparation of paper
C. Preparation of cosmetics
D. Propellent explosive

Answer

**Step-by-Step Solution:**

1. **Understanding Nitrocellulose**: Nitrocellulose, also known as cellulose nitrate, is a compound formed by the nitration of cellulose.

2. **Nitration Process**: The nitration of cellulose occurs when cellulose is exposed to a mixture of nitric acid and sulfuric acid. This chemical reaction introduces nitro groups into the cellulose structure, resulting in nitrocellulose.

3. **Properties of Nitrocellulose**: One of the key properties of nitrocellulose is that it is highly inflammable. This characteristic is significant because it determines its applications.

4. **Applications of Nitrocellulose**: Due to its highly flammable nature, nitrocellulose is primarily used as a propellant explosive. It is commonly used in firearms and mining as a replacement for gunpowder, which is why it is sometimes referred to as "gun cotton."

5. **Evaluating the Options**:
- **Preparation of bags and ropes**: Incorrect. These are typically made from regular cellulose, not nitrocellulose.
- **Preparation of paper**: Incorrect. Paper is made from cellulose, not nitrocellulose.
- **Preparation of cosmetics**: While some cosmetics may contain nitrocellulose, it is not a primary use.
- **Propellant explosive**: Correct. Nitrocellulose is widely used as a propellant explosive in various applications.

6. **Conclusion**: The correct answer is that nitrocellulose is used as a propellant explosive.

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