Match List-I with List-II and select the correct answer using the code

Match List-I with List-II and select the correct answer using the code given below the Lists :

List-I
(Compound)
List-II
(Type of polymer)
A. Melamine1. Linear
B. Polyvinyl chloride2. Condensation
C. Terylene3. Natural
D. Cellulose4. Cross-linked

Code :

A-3, B-2, C-1, D-4
A-4, B-1, C-2, D-3
A-3, B-1, C-2, D-4
A-4, B-2, C-1, D-3
This question was previously asked in
UPSC CAPF – 2018
The correct matching is A-4, B-1, C-2, D-3.
– **Melamine:** Melamine-formaldehyde resin is a thermosetting polymer formed by condensation polymerization, resulting in a rigid, **cross-linked** structure.
– **Polyvinyl chloride (PVC):** Formed from vinyl chloride monomers (CH2=CHCl) via addition polymerization. PVC chains are essentially **linear**.
– **Terylene (PET):** Polyethylene terephthalate is a polyester formed by **condensation** polymerization of ethylene glycol and terephthalic acid.
– **Cellulose:** A naturally occurring polysaccharide found in plant cell walls. It is a **natural** polymer.
Polymers can be classified based on their structure (linear, branched, cross-linked), origin (natural, synthetic), and synthesis method (addition, condensation). Melamine is known for its use in laminates and molded plastics due to its cross-linked structure. PVC is a common thermoplastic used in pipes, cables, etc. Terylene is widely used as a fiber (polyester fabrics) and in bottles. Cellulose is the main component of wood and cotton.