Match the ores of List - I with their composition in List - II
`{:(,"List - I",,"List - II"),((P),"Malachite",(1),"Sulphide of copper"),((Q),"Azurite",(2),"Sulphide of iron"),((R),"Chalcopyrites",(3),"Dirty brown"),((S),"Cuprite",(4),"Ore containing carbonate of copper"):}`

Options

A. `{:(P,Q,R,S),(4,1,2,3):}`
B. `{:(P,Q,R,S),(4,4,"1,2",3):}`
C. `{:(P,Q,R,S),(2,3,4,1):}`
D. `{:(P,Q,R,S),(3,4,2,1):}`

Answer

To solve the problem of matching the ores in List - I with their respective compositions in List - II, we can follow these steps:

### Step 1: Identify the Ores and Their Compositions
We have four ores in List - I:
- P: Malachite
- Q: Azurite
- R: Chalcopyrites
- S: Cuprite

And their potential compositions in List - II:
1. Sulphide of copper
2. Sulphide of iron
3. Dirty brown
4. Ore containing carbonate of copper

### Step 2: Analyze Each Ore
1. **Malachite (P)**:
- Composition: It is a copper carbonate hydroxide mineral.
- Therefore, it matches with **4: Ore containing carbonate of copper**.

2. **Azurite (Q)**:
- Composition: Like Malachite, Azurite is also a copper carbonate mineral, but it is typically blue in color.
- Therefore, it also matches with **4: Ore containing carbonate of copper**.

3. **Chalcopyrites (R)**:
- Composition: This ore has the formula CuFeS2, which indicates it is a sulphide mineral of both copper and iron.
- Therefore, it matches with **1: Sulphide of copper** and **2: Sulphide of iron**.

4. **Cuprite (S)**:
- Composition: Cuprite is a copper oxide mineral, typically dark red or brownish-black in color.
- Therefore, it matches with **3: Dirty brown**.

### Step 3: Match the Ores with Their Compositions
Now we can summarize the matches:
- P (Malachite) → 4 (Ore containing carbonate of copper)
- Q (Azurite) → 4 (Ore containing carbonate of copper)
- R (Chalcopyrites) → 1 (Sulphide of copper) and 2 (Sulphide of iron)
- S (Cuprite) → 3 (Dirty brown)

### Final Matches
- P → 4
- Q → 4
- R → 1, 2
- S → 3

### Conclusion
The correct matches are:
- P: Malachite → 4
- Q: Azurite → 4
- R: Chalcopyrites → 1, 2
- S: Cuprite → 3