Bithional is generally added to the soaps as an additive to function as a`//`an

Options

A. softener
B. dryer
C. buffering agent
D. antiseptic

Explanation

To solve the question regarding the function of Bithional when added to soaps, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Purpose of Bithional**:
- Bithional is an additive that is commonly included in soaps. We need to determine its primary function.

2. **Consider the Options**:
- The options provided are:
- Softener
- Dryer
- Buffering agent
- Antiseptic

3. **Analyze Each Option**:
- **Softener**: This would imply that Bithional makes the soap smoother or more pleasant to the skin, which is not its primary function.
- **Dryer**: This suggests that it would remove moisture, which is not applicable to soaps.
- **Buffering Agent**: This would help maintain a stable pH in the soap, but it is not the main role of Bithional.
- **Antiseptic**: This means that it helps to kill or inhibit the growth of microorganisms, which is a common property of certain additives in soaps.

4. **Conclusion**:
- Based on the analysis, Bithional is primarily used as an **antiseptic** in soaps. It helps to reduce odors caused by the decomposition of organic matter, thus imparting freshness.

5. **Final Answer**:
- Bithional is generally added to soaps as an additive to function as an **antiseptic**.