Boric acid can be used:

Options

A. as an antiseptic
B. as a flux in soldering
C. in making optical glasses
D. in making enamels and pottery glazes

Answer

**Step-by-Step Solution:**

1. **Identify the Uses of Boric Acid:**
- Boric acid has multiple applications in various fields. We need to identify each of these uses.

2. **Antiseptic Properties:**
- Boric acid is known for its antibacterial properties. It can be used as an antiseptic to treat minor cuts and burns, as well as in eye washes to reduce irritation.
- **Conclusion:** Boric acid can be used as an antiseptic.

3. **Flux in Soldering:**
- In soldering, boric acid acts as a flux. It helps to clean the metal surfaces and prevent oxidation, allowing for better adhesion of the solder.
- **Conclusion:** Boric acid can be used as a flux in soldering.

4. **Making Optical Glasses:**
- Boric acid is utilized in the production of optical glasses. Its properties help in reducing bacterial growth and irritation in the eyes, making it suitable for this application.
- **Conclusion:** Boric acid can be used in making optical glasses.

5. **Enamel and Pottery Glazes:**
- Boric acid is also used in the formulation of enamels and pottery glazes. It helps to enhance the quality and durability of these materials.
- **Conclusion:** Boric acid can be used in making enamel and pottery glazes.

6. **Final Conclusion:**
- Since boric acid can be used for all the mentioned applications (as an antiseptic, as a flux in soldering, in making optical glasses, and in making enamel and pottery glazes), the answer includes all options provided.

**Final Answer:**
Boric acid can be used for all of the given uses: A, B, C, and D.

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