Match List I with List II and select the correct answer using the codes gives below the lists :
`{:(" ""List - I"," ""List - II"),("A. van Arkel method","1. Manufacture of caustic soda"),("B. Solvay process","2. Purification of titanium"),("C. Cupellation","3. Manufacture of" Na_(2)CO_(3)),("D. Poling","4. Purification of copper"),(,"5. Refining of silver"):}`

Options

A. `{:(A,B,C,D),(2,1,3,4):}`
B. `{:(A,B,C,D),(4,3,2,5):}`
C. `{:(A,B,C,D),(2,3,5,4):}`
D. `{:(A,B,C,D),(5,1,3,4):}`

Answer

To solve the problem of matching List I with List II, we will analyze each item in List I and identify its corresponding item in List II based on the descriptions provided.

### Step-by-Step Solution:

1. **Identify the first item in List I: Van Arkel method**
- The Van Arkel method is primarily used for the purification of titanium by removing impurities such as oxygen and nitrogen.
- **Match:** A (Van Arkel method) → 2 (Purification of titanium)

2. **Identify the second item in List I: Solvay process**
- The Solvay process is used for the manufacture of sodium carbonate (Na₂CO₃). It involves the use of brine (NaCl solution), ammonia (NH₃), and carbon dioxide (CO₂).
- **Match:** B (Solvay process) → 3 (Manufacture of Na₂CO₃)

3. **Identify the third item in List I: Cupellation**
- Cupellation is a refining process used for noble metals, particularly silver. It involves high temperatures to remove lead and other impurities from silver.
- **Match:** C (Cupellation) → 5 (Refining of silver)

4. **Identify the fourth item in List I: Poling**
- Poling is a process used for the purification of copper, especially when it contains oxide impurities. It involves the reduction of these oxides.
- **Match:** D (Poling) → 4 (Purification of copper)

### Final Matches:
- A → 2 (Purification of titanium)
- B → 3 (Manufacture of Na₂CO₃)
- C → 5 (Refining of silver)
- D → 4 (Purification of copper)

### Conclusion:
The correct matches are:
- A - 2
- B - 3
- C - 5
- D - 4

The correct option is **3**.

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