Match the following
`{:("List-I", "List-II"),((A)"Ammonia preparation",(1)"Bio catalysed"),((B)"Hydrogenation",(2)"Fe"),((C)"Fermentation", (3)"Ni"),((D)SO_(2)+(1)/(2)O_(2)overset(NO)(rarr)SO_(3) ,(4)"Homogeneous"):}`

Options

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

Answer

To solve the matching question, we need to analyze each item in List-I and find the corresponding item in List-II based on the descriptions provided.

### Step-by-Step Solution:

1. **Ammonia Preparation (A)**:
- The preparation of ammonia is commonly done through the Haber process.
- The catalyst used in this process is Iron (Fe).
- Therefore, A matches with (2) Fe.

2. **Hydrogenation (B)**:
- Hydrogenation involves the addition of hydrogen to unsaturated compounds, typically using a catalyst.
- The catalyst commonly used for hydrogenation is Nickel (Ni).
- Thus, B matches with (3) Ni.

3. **Fermentation (C)**:
- Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes.
- Enzymes act as biocatalysts in this process.
- Hence, C matches with (1) Bio catalysed.

4. **SO₂ + (1/2) O₂ → SO₃ (D)**:
- This reaction involves the conversion of sulfur dioxide to sulfur trioxide.
- It is typically a homogeneous reaction since the reactants and catalysts are in the same phase (gas).
- Therefore, D matches with (4) Homogeneous.

### Final Matches:
- A → 2 (Fe)
- B → 3 (Ni)
- C → 1 (Bio catalysed)
- D → 4 (Homogeneous)

### Summary of Matches:
- (A) Ammonia preparation → (2) Fe
- (B) Hydrogenation → (3) Ni
- (C) Fermentation → (1) Bio catalysed
- (D) SO₂ + (1/2) O₂ → SO₃ → (4) Homogeneous