Match the entries listed in Column I with appropriate entries listed in Column II.
`{:(,"Column I",,"Column II"),((A),"Wilikinson's catalyst",(p),"Polymerisation of alkenes"),((B),V_(2)O_(5)"catalyst",(q),(Ph_(3)P)_(3)RhCl),((C),"Ziegler-Natta catalyst",(r),"Hydrogenation of alkenes"),((D),"Platinum catalyst",(s),"Manufacture of "H_(2)SO_(4)),(,,,"(contact process)"):}`

Explanation

To solve the matching question, we will analyze each entry in Column I and find the corresponding entry in Column II based on the known applications of the catalysts mentioned.

### Step-by-Step Solution:

1. **Identify Wilkinson's Catalyst (A)**:
- Wilkinson's catalyst is represented as \( (Ph_3P)_3RhCl \).
- It is primarily used for the hydrogenation of alkenes.
- **Match**: A → q (Hydrogenation of alkenes).

2. **Identify \( V_2O_5 \) Catalyst (B)**:
- \( V_2O_5 \) is commonly used in the contact process for the manufacture of sulfuric acid.
- **Match**: B → s (Manufacture of \( H_2SO_4 \) via contact process).

3. **Identify Ziegler-Natta Catalyst (C)**:
- The Ziegler-Natta catalyst is used for the polymerization of alkenes.
- **Match**: C → p (Polymerization of alkenes).

4. **Identify Platinum Catalyst (D)**:
- The platinum catalyst is also used for hydrogenation reactions, similar to Wilkinson's catalyst.
- **Match**: D → r (Hydrogenation of alkenes).

### Final Matches:
- A → q (Wilkinson's catalyst → Hydrogenation of alkenes)
- B → s (V2O5 catalyst → Manufacture of \( H_2SO_4 \) via contact process)
- C → p (Ziegler-Natta catalyst → Polymerization of alkenes)
- D → r (Platinum catalyst → Hydrogenation of alkenes)

### Summary of Matches:
- A - q
- B - s
- C - p
- D - r