`{:(,"List-I",,"List-II"),((A),"Terylene",(p),"Elastomer"),((B),"Bakelite",(q),"fibre"),((C),"neoprene",(r),"thermo setting"),((D),"Polystyrene",(s),"thermoplastic"):}`

Explanation

To solve the problem of matching the polymers from List-I with their corresponding categories in List-II, we will analyze each polymer and determine its classification based on its properties.

### Step-by-Step Solution:

1. **Identify the Polymers:**
- List-I contains the following polymers:
- A) Terylene
- B) Bakelite
- C) Neoprene
- D) Polystyrene

2. **Analyze Terylene:**
- Terylene is a type of polyester made from ethylene glycol and terephthalic acid.
- It is primarily used to make fibers due to its high tensile strength and durability.
- **Match:** Terylene (A) → Fiber (q)

3. **Analyze Bakelite:**
- Bakelite is a thermosetting plastic made from the polymerization of phenol and formaldehyde.
- It has a cross-linked structure that makes it infusible and unable to be remolded once set.
- **Match:** Bakelite (B) → Thermosetting (r)

4. **Analyze Neoprene:**
- Neoprene is a synthetic rubber derived from the polymerization of chloroprene.
- It is classified as an elastomer due to its elastic properties and ability to stretch.
- **Match:** Neoprene (C) → Elastomer (p)

5. **Analyze Polystyrene:**
- Polystyrene is a thermoplastic made from the polymerization of styrene.
- It can be repeatedly softened by heating and hardened by cooling, which is characteristic of thermoplastics.
- **Match:** Polystyrene (D) → Thermoplastic (s)

### Final Matching:
- A) Terylene → q) Fiber
- B) Bakelite → r) Thermosetting
- C) Neoprene → p) Elastomer
- D) Polystyrene → s) Thermoplastic

### Summary of Matches:
- Terylene (A) → Fiber (q)
- Bakelite (B) → Thermosetting (r)
- Neoprene (C) → Elastomer (p)
- Polystyrene (D) → Thermoplastic (s)