Match the column I with column II
`{:("Column-I","Column-II"),((A)"Natural rubber",(p)"Thermosetting polymer"),((B)"Nylon-66",(q)"Homopolymer"),((C )"Bakelite",(r)"Butadiene & styrene"),((D)"Buna-S",(s)"Polyamide"),(,(t)"Copolymer"):}`

Answer

To solve the matching question between Column I and Column II, we need to identify the characteristics of each polymer listed in Column I and match them with the appropriate descriptions in Column II.

### Step-by-Step Solution:

1. **Identify Natural Rubber**:
- Natural rubber is primarily composed of polyisoprene, which is a homopolymer formed from the monomer isoprene (2-methyl-1,3-butadiene).
- Since it is made from one type of monomer, it is classified as a **homopolymer**.

**Match**: A (Natural rubber) → q (Homopolymer)

2. **Identify Nylon-66**:
- Nylon-66 is a synthetic polymer made from two different monomers: hexamethylene diamine and adipic acid.
- It is classified as a **copolymer** because it is formed from two different types of monomers.
- Additionally, it contains amide linkages, which classifies it as a **polyamide**.

**Match**: B (Nylon-66) → s (Polyamide) and t (Copolymer)

3. **Identify Bakelite**:
- Bakelite is a thermosetting polymer made from phenol and formaldehyde through a condensation reaction.
- It is also a **copolymer** because it is formed from two different monomers.
- Being a thermosetting polymer means it undergoes a permanent change when heated and cannot be remolded.

**Match**: C (Bakelite) → p (Thermosetting polymer) and t (Copolymer)

4. **Identify Buna-S**:
- Buna-S is a copolymer made from the polymerization of butadiene and styrene.
- It is specifically known as styrene-butadiene rubber (SBR), which is also a **copolymer**.

**Match**: D (Buna-S) → r (Butadiene & styrene) and t (Copolymer)

### Final Matches:
- A → q
- B → s, t
- C → p, t
- D → r, t

### Summary of Matches:
- A (Natural rubber) → q (Homopolymer)
- B (Nylon-66) → s (Polyamide), t (Copolymer)
- C (Bakelite) → p (Thermosetting polymer), t (Copolymer)
- D (Buna-S) → r (Butadiene & styrene), t (Copolymer)