Which percentage of sulphur is used in the vulcanization of rubber?

Options

A. 55
B. 30
C. 5
D. 40

Answer

To determine the percentage of sulfur used in the vulcanization of rubber, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Vulcanization**:
- Vulcanization is a chemical process that involves heating rubber with sulfur. This process enhances the properties of rubber, making it harder, more elastic, and able to withstand higher temperatures.

2. **Identify the Role of Sulfur**:
- Sulfur acts as a cross-linking agent in the vulcanization process. It forms bridges between the rubber molecules, which increases the strength and elasticity of the rubber.

3. **Determine the Typical Percentage of Sulfur Used**:
- In the vulcanization process, approximately 5% sulfur is typically used. This percentage can vary slightly depending on the specific type of rubber and the desired properties, but 5% is a common standard.

4. **Conclusion**:
- Therefore, the percentage of sulfur used in the vulcanization of rubber is about 5%.

### Final Answer:
Approximately 5% of sulfur is used in the vulcanization of rubber.

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