Question

Match List I with List II

List-I	Polymer	List-II	Type/ Class
(A)	Nylon-2-Nylon-6	(I)	Thermosetting polymer
(B)	Buna-N	(II)	Biodegradable polymer
(C)	Urea-formaldehyde	(III)	Synthetic rubber resin
(D)	Dacron	(IV)	Polyester

Choose the correct answer from the options given below:

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

Hint:

Understanding the properties and applications of polymers helps in correctly identifying their types. For example, biodegradable polymers like Nylon-2-Nylon 6 decompose naturally, while synthetic rubbers like Buna-N are used for their elasticity

Answer 1

The Correct Option is B

 To match the polymers in List-I with their corresponding types or classes in List-II, let's analyze each polymer one by one, understanding their properties and classifications:

1. Nylon-2-Nylon-6:
   • This polymer is a type of polyamide and is known for being biodegradable. It is designed to break down naturally in the environment.
   • Therefore, Nylon-2-Nylon-6 matches with (II) Biodegradable polymer.
2. Buna-N:
   • Buna-N, also known as Nitrile rubber, is a synthetic rubber. It is a copolymer made from butadiene and acrylonitrile.
   • This polymer falls under the category of (III) Synthetic rubber resin.
3. Urea-formaldehyde:
   • It is a non-transparent thermosetting resin or polymer. Thermosetting polymers become irreversibly hard when cured and are used in various adhesive compositions.
   • Hence, Urea-formaldehyde links with (I) Thermosetting polymer.
4. Dacron:
   • Dacron is a type of polyester fiber, known for its durability and resistance to stretching and shrinking.
   • As such, Dacron corresponds to (IV) Polyester.

Thus, the correct matching of List-I with List-II is:

(A)	Nylon-2-Nylon-6	(II)	Biodegradable polymer
(B)	Buna-N	(III)	Synthetic rubber resin
(C)	Urea-formaldehyde	(I)	Thermosetting polymer
(D)	Dacron	(IV)	Polyester

The correct answer from the options given is: (A)-(II), (B)-(III), (C)-(I), (D)-(IV).

This choice accurately reflects the properties and classifications of each polymer.