Find the incorrectly matched pair ?

Options

A. `{:("Column-I(ores)","Column-II(metals)"),("Sylvine",(1)"Potassium"):}`
B. `{:("Column-I(ores)","Column-II(metals)"),("Malachite",(2)"Magnesium"):}`
C. `{:("Column-I(ores)","Column-II(metals)"),("Cinnabar",(3)"Mercury"):}`
D. `{:("Column-I(ores)","Column-II(metals)"),("Fluorite (Flourspar)",(4)"Calcium"):}`

Answer

To find the incorrectly matched pair of ores and their corresponding metals, we will analyze each option provided:

### Step 1: Analyze Option 1
- **Ore:** Sivaline
- **Metal:** Potassium
- **Formula:** Sivaline is KCl (Potassium Chloride).
- **Analysis:** Sivaline is indeed a potassium-containing ore.
- **Conclusion:** This pair is correctly matched.

### Step 2: Analyze Option 2
- **Ore:** Malachite
- **Metal:** Magnesium
- **Formula:** Malachite is Cu2CO3(OH)2 (Copper Carbonate Hydroxide).
- **Analysis:** Malachite is a copper-containing ore, not magnesium.
- **Conclusion:** This pair is incorrectly matched.

### Step 3: Analyze Option 3
- **Ore:** Cinnabar
- **Metal:** Mercury
- **Formula:** Cinnabar is HgS (Mercury Sulfide).
- **Analysis:** Cinnabar is indeed a mercury-containing ore.
- **Conclusion:** This pair is correctly matched.

### Step 4: Analyze Option 4
- **Ore:** Fluorite
- **Metal:** Calcium
- **Formula:** Fluorite is CaF2 (Calcium Fluoride).
- **Analysis:** Fluorite is a calcium-containing ore.
- **Conclusion:** This pair is correctly matched.

### Final Conclusion
The incorrectly matched pair is:
- **Option 2:** Malachite is incorrectly matched with Magnesium.

### Summary of Findings
- **Correctly Matched Pairs:**
- Sivaline - Potassium
- Cinnabar - Mercury
- Fluorite - Calcium
- **Incorrectly Matched Pair:**
- Malachite - Magnesium