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39
Subjective

Match the polymers given in Column I with their chemical names given in Column II.

Column I Column II
A. Nylon-6 1. Polyvinyl chloride
B. PVC 2. Polyacrylonitrile
C. Acrilan 3. Polycaprocactum
D. Natural rubber 4. Low density polythene
E. LDP 5. cis-polyisoprene

Explanation

A. $\rightarrow$ (3) B. $\rightarrow(1)$ C. $\rightarrow$ (2) D. $\rightarrow(5)$ E. $\rightarrow$ (4)

Column I represents various polymers and Column II represents their chemical names.

Column I Column II
A. Nylon-6 1. Polycaprolactum
B. PVC 2. Polyvinyl chloride
C. Acrilan 3. Polyacrylonitrile
D. Natural rubber 4. cis-polyisoprene
E. LDP 5. Low density polythene

40
Subjective

Match the polymers given in Column I with their commercial names given in Column II.

Column I Column II
A. Polyester of glycol and phthalic acid 1. Novolac
B. Copolymer of 1, 3-butadiene and styrene 2. Glyptal
C. Phenol and formaldehyde resin 3. Buna-S
D. Polyester of glycol and terephthalic acid 4. Buna-N
E. Copolymer of 1,3- butadiene and acrylonitrile 5. Dacron

Explanation

A. $\rightarrow(2)$ B. $\rightarrow$ (3) C. $\rightarrow$ (1) D. $\rightarrow$ (5) E. $\rightarrow$ (4)

Column I represents monomers of polymer and Column II represents their commercial name.

Column I Column II
A. Polyester of glycol and phthalic acid 1. Glyptal
B. Copolymer of 1, 3-butadiene and styrene 2. Buna-S
C. Phenol and formaldehyde resin 3. Novloac
D. Polyester of glycol and terephthalic acid 4. Dacron
E. Copolymer of 1,3- butadiene and acrylonitrile 5. Buna-N

41
Subjective

Match the polymers given in Column I with their main applications given in Column II.

Column I Column II
A. Bakelite 1. Unbreakable crockery
B. Low density polyethene 2. Non-stick cookwares
C. Melamine-formaldehyde resin 3. Packaging material for shock absorbance
D. Nylon-6 4. Electrical switches
E. Polytetrafluoroethane 5. Squeeze bottles
F. Polystyrene 6. Tyre, cords

Explanation

A. $\rightarrow(4)$ B. $\rightarrow$ (5) C. $\rightarrow$ (1) D. $\rightarrow(6)$ E. $\rightarrow(4)$ F. $\rightarrow(3)$

Column I Column II
A. Bakelite 1. Electrical switches
B. Low density polyethene 2. Squeeze bottles
C. Melamine-formaldehyde resin 3. Unbreakable crockery
D. Nylon-6 4. Tyre, cords
E. Polytetrafluoroethane 5. Non-stick cookwares
F. Polystyrene 6. Packaging material for shock absorbance

42
Subjective

Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers Column II.

Column I Column II
A. Nylon-6,6 1. Free radical polymerisation
B. PVC 2. Ziegler-Natta polymerisation or coordination polymerisation
C. HDP 3. Anionic polymerisation

Explanation

A. $\rightarrow$ (4) B. $\rightarrow(1)$ C. $\rightarrow$ (2)

Column I represents name of various polymer and Column II represents mechanism of polymerisation. Correct matching can be done as

Column I Column II
A. Nylon-6,6 1. Condensation polymerisation
B. PVC 2. Free radical polymerisation
C. HDP 3. Ziegler-Natta polymerisation or coordination polymerisation

43
Subjective

Match the polymers given in Column I with the type of linkage present in them given in Column II.

Column I Column II
A. Terylene 1. Glycosidic linkage
B. Nylon 2. Ester linkage
C. Cellulose 3. Phosphodiester linkage
D. Proetin 4. Amide linkage
E. RNA

Explanation

A. $\rightarrow(2)$ B. $\rightarrow$ (4) C. $\rightarrow(1)$ D. $\rightarrow(4)$ E. $\rightarrow$ (3)

Column I represents name of polymer and Column II represents types of linkage. Hence, correct matching can be done as

Column I Column II
A. Terylene 1. Ester linkage
B. Nylon 2. Amide linkage
C. Cellulose 3. Glycosidic linkage
D. Proetin 4. Amide linkage
E. RNA Phosphodiester linkage