Match List I with List II

Choose the correct answer from the options given below:

(A)-(II), (B)-(IV), (C)-(I), (D)-(III)

The correct answer is option 2. (A)-(II), (B)-(IV), (C)-(I), (D)-(III).

Let us look into each polymer and its corresponding monomer in detail:

(A) Buna-S - (II) 1,3-Butadiene: Buna-S is a type of synthetic rubber that is composed of a copolymer of butadiene and styrene. Butadiene is a conjugated diene, meaning it contains two double bonds separated by a single bond. Its molecular formula is \(C_4H_6\), and it is commonly used in the production of synthetic rubbers due to its ability to polymerize readily under suitable conditions. Styrene is an aromatic hydrocarbon with the molecular formula \(C_8H_8\). When polymerized with butadiene, it contributes to the cross-linking and structural integrity of the resulting polymer, Buna-S.

(B) Neoprene - (IV) Chloroprene: Neoprene is another type of synthetic rubber, primarily composed of the polymer chloroprene. Chloroprene is a monomer with the molecular formula \(C_4H_5Cl\). It is derived from the chlorination of 1,3-butadiene, resulting in the substitution of a chlorine atom for one of the double bonds. The polymerization of chloroprene leads to the formation of neoprene, which exhibits excellent resistance to heat, weathering, and chemicals. Neoprene is commonly used in various applications such as wetsuits, gaskets, and automotive hoses.

(C) PVC - (I) Vinyl chloride: PVC (polyvinyl chloride) is a widely used thermoplastic polymer that is produced from the polymerization of vinyl chloride monomers. Vinyl chloride is a colorless gas with the molecular formula \(C_2H_3Cl\). Through a process called vinyl polymerization, the vinyl chloride molecules undergo addition polymerization, wherein the double bond between the carbon and chlorine atoms opens up, allowing for the formation of long polymer chains. PVC is valued for its versatility, durability, and resistance to abrasion, corrosion, and chemicals. It finds applications in construction (pipes, fittings, siding), healthcare (medical tubing, IV bags), packaging, and various consumer products.

(D) Teflon - (III) Tetrafluoroethylene: Teflon is a brand name for polytetrafluoroethylene (PTFE), a synthetic fluoropolymer derived from the polymerization of tetrafluoroethylene monomers. Tetrafluoroethylene is a colorless, odorless gas with the molecular formula \(C_2F_4\). It consists of two carbon atoms bonded to four fluorine atoms. The polymerization of tetrafluoroethylene results in the formation of a long-chain polymer with repeating units of \(-CF_2-\). Teflon is known for its remarkable non-stick properties, high chemical resistance, and low friction coefficient. It is commonly used in non-stick cookware, plumbing tape, electrical insulation, and various industrial applications.