Match List-I with List-II and select the correct answer by using the codes given below the list :
List-I (Monomer) : List-II (Polymer)
(a) Chloroethene : (i) P.A.N.
(b) Caprolactam : (ii) Natural rubber
(c) Isoprene : (iii) Nylon-6
(d) Acrelonitrile : (iv) P.V.C.

Question

Accepted Answer

To justify why Option 4 is the correct answer, let's examine the relationship between the monomers in List-I and their corresponding polymers in List-II:

1. **Chloroethene and P.V.C.**:
   - Chloroethene, also known as vinyl chloride, is the monomer used to produce polyvinyl chloride (P.V.C.). P.V.C. is a widely used plastic known for its durability and resistance to environmental degradation. Therefore, the correct match for chloroethene is P.V.C., which corresponds to (a)(iv).

2. **Caprolactam and Nylon-6**:
   - Caprolactam is the monomer used in the production of Nylon-6, a type of synthetic polymer known for its strength and elasticity. Nylon-6 is commonly used in textiles and engineering plastics. Thus, the correct match for caprolactam is Nylon-6, which corresponds to (b)(iii).

3. **Isoprene and Natural Rubber**:
   - Isoprene is the monomer that polymerizes to form natural rubber. Natural rubber is an elastomer that is harvested from rubber trees and is used in a variety of applications, including tires and footwear. Therefore, the correct match for isoprene is natural rubber, which corresponds to (c)(ii).

4. **Acrylonitrile and P.A.N.**:
   - Acrylonitrile is the monomer used to produce polyacrylonitrile (P.A.N.), which is a polymer used in the production of acrylic fibers and as a precursor for carbon fiber. Thus, the correct match for acrylonitrile is P.A.N., which corresponds to (d)(i).

Now, let's explain why the other options are incorrect:

- **Option 1**: This option incorrectly matches chloroethene with P.A.N., caprolactam with natural rubber, isoprene with Nylon-6, and acrylonitrile with P.V.C. None of these matches are correct based on the chemical properties and uses of the monomers and polymers.

- **Option 2**: This option incorrectly matches chloroethene with P.V.C. (which is correct), but then incorrectly matches caprolactam with natural rubber, isoprene with P.A.N., and acrylonitrile with Nylon-6. These mismatches do not align with the known polymerization processes.

- **Option 3**: This option correctly matches chloroethene with P.V.C., but incorrectly matches caprolactam with P.A.N., isoprene with natural rubber (which is correct), and acrylonitrile with Nylon-6. The incorrect matches for caprolactam and acrylonitrile make this option incorrect.

In conclusion, Option 4 is the only option that correctly matches each monomer with its corresponding polymer, based on the chemical properties and industrial applications of these substances.