`{:(Column-I(Ore),Column-II("Created formula & properties")),((A)"Iron pyrites",(p) FeS_(2)),((B)"Fool's gold",(q)"Sulphide ore"),((C)"Galena",(r)Fe_(2)O_(3)),((D)"Haematite",(s)"Concentrated by froth"):}`
Match

Answer

To match the ores with their corresponding formulas and properties, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Iron Pyrites**:
- Iron pyrites is known as fool's gold and is an ore of iron.
- Its chemical formula is \( \text{FeS}_2 \).
- It is classified as a sulphide ore.

**Match**:
- A: Iron pyrites → (p) \( \text{FeS}_2 \) and (q) "Sulphide ore".

2. **Identify Fool's Gold**:
- Fool's gold is another name for iron pyrites.
- Therefore, it shares the same properties as iron pyrites.

**Match**:
- B: Fool's gold → (p) \( \text{FeS}_2 \) and (q) "Sulphide ore".

3. **Identify Galena**:
- Galena is the ore of lead.
- Its chemical formula is \( \text{PbS} \) and it is also a sulphide ore.

**Match**:
- C: Galena → (q) "Sulphide ore".

4. **Identify Haematite**:
- Haematite is an ore of iron.
- Its chemical formula is \( \text{Fe}_2\text{O}_3 \) and it is classified as an oxidized ore of iron.

**Match**:
- D: Haematite → (r) \( \text{Fe}_2\text{O}_3 \).

5. **Identify Concentration Method**:
- The froth flotation method is used for the concentration of sulphide ores.
- Therefore, it matches with the sulphide ores identified.

**Match**:
- For the froth flotation method, we have (s) "Concentrated by froth".

### Final Matches:
- A: Iron pyrites → (p) \( \text{FeS}_2 \), (q) "Sulphide ore"
- B: Fool's gold → (p) \( \text{FeS}_2 \), (q) "Sulphide ore"
- C: Galena → (q) "Sulphide ore"
- D: Haematite → (r) \( \text{Fe}_2\text{O}_3 \)