Question

Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Natural polymer	(i)	Rayon
(B)	Addition polymer	(ii)	Bakelite
(C)	Copolymer	(iii)	Silk
(D)	Semi-synthetic polymer	(iv)	Neoprene

• A. (A) $\to$ (i), (B) $\to$ (ii), (C) $\to$ (iv), (D) $\to$ (iii)
• B. (A) $\to$ (iii), (B) $\to$ (iv), (C) $\to$ (ii), (D) $\to$ (i)
• C. (A) $\to$ (ii), (B) $\to$ (iii), (C) $\to$ (i), (D) $\to$ (iv)
• D. (A) $\to$ (iv), (B) $\to$ (i), (C) $\to$ (iii), (D) $\to$ (ii)

Answer 1

Explanation:

(A) Natural rubber - (iii) Silk

These polymers are found in plants and animals. Examples are

proteins, cellulose, starch, resins.

(B) Addition polymer - (iv) Neoprene

An addition polymer is formed by chain growth polymerization. The addition polymer contains all atoms of monomers.

(C) Copolymer - (ii) Bakelite

A copolymer is a polymer that is made up of two or more monomer species. Many commercially important polymers are copolymers.

(D) Semi-synthetic polymer - (i) Rayon

Semi-Synthetic polymers are polymers that are obtained by making changes in natural polymers by making laboratory.

Natural rubber	(iii) Silk
Addition polymer	(iv) Neoprene
Copolymer	(ii) Bakelite
Semi-synthetic polymer	(i) Rayon

The correct option is [B].