Metals occur in nature in the free as well as in the combined state. The less reactive metals are generally found in the free state. Most of the metals, however are found in the combined form as minerals. The minerals from which metals can be obtained on a commercial scale are called ores. In other words, the minerals from which metals can be extracted profitably are called ores. Thus, bauxite `(Al_(2)O_(3)*2H_(2)O)`and clay `(Al_(2)O_(3).2SiO_(2).2H_(2)O)` are minerals of aluminium. However, it is bauxite that is chiefly used to obtain aluminium commercially. So, bauxite, and not clay, is an ore of aluminium.
Halide ore is

Options

A. Cinnabar
B. galena
C. calamine
D. horn silver.

Explanation

**Step-by-Step Solution:**

1. **Understanding Ores and Halide Ores:**
- Ores are naturally occurring minerals from which metals can be extracted profitably.
- Halide ores contain halide ions (like fluoride, chloride, bromide, or iodide) combined with metals.

2. **Identifying the Given Options:**
- The question provides several minerals: cinnabar, galena, calamine, and hone silver.
- We need to identify which of these is a halide ore.

3. **Analyzing Each Option:**
- **Cinnabar (HgS):** This is an ore of mercury, specifically a sulfide ore, not a halide ore.
- **Galena (PbS):** This is a lead ore and is also a sulfide ore, not a halide ore.
- **Calamine (ZnCO₃):** This is a zinc ore, specifically a carbonate ore, not a halide ore.
- **Hone Silver (AgCl):** This contains chloride ions (Cl⁻) and is a silver ore, making it a halide ore.

4. **Conclusion:**
- Among the given options, hone silver (AgCl) is the only halide ore.

**Final Answer:**
- The halide ore from the options provided is **Hone Silver (AgCl)**.

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