Sanitary fittings are generally coated with a layer of which metal ?

Options

A. Chromium
B. Zinc
C. Silver
D. Aluminium

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which metal is commonly used to coat sanitary fittings. Sanitary fittings refer to plumbing fixtures like taps, sinks, and showers.

2. **Identifying the Options**: The options given are:
- Chromium
- Zinc
- Silver
- Aluminium

3. **Analyzing Each Option**:
- **Chromium**: Known for its shiny appearance and resistance to corrosion, it is often used for coating to enhance durability and aesthetics.
- **Zinc**: Typically used for galvanizing to prevent rust but not commonly used for sanitary fittings.
- **Silver**: While it has antibacterial properties, it is expensive and not practical for large fittings.
- **Aluminium**: Lightweight and resistant to corrosion but not typically used for coating sanitary fittings.

4. **Conclusion**: Based on the properties and common uses of these metals, the most suitable and commonly used metal for coating sanitary fittings is **Chromium**.

5. **Final Answer**: Sanitary fittings are generally coated with a layer of **Chromium**.

---