ExamGOAL
Books
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

44
Subjective

Match materials given in Column I with the polymers given in Column II.

Column I Column II
A. Natural rubber latex 1. Nylon
B. Wood laminates 2. Neoprene
C. Ropes and fibres 3. Dacron
D. Polyester fabric 4. Melamine formaldehyde resins
E. Synthetic rubber 5. Urea-formaldehyde resins
F. Unbreakable crockery 6. cis-polyisoprene

Explanation

A. $\rightarrow$ (6) B. $\rightarrow$ (5) C. $\rightarrow$ (1) D. $\rightarrow(3)$ E. $\rightarrow$ (2) F. $\rightarrow$ (4)

Column I represents various uses or precursurs of polymers and Column II represents name of related polymer. The correct matching can be done as

Column I Column II
A. Natural rubber latex 1. cis-polyisoprene
B. Wood laminates 2. Urea-formaldehyde resins
C. Ropes and fibres 3. Nylon
D. Polyester fabric 4. Dacron
E. Synthetic rubber 5. Neoprene
F. Unbreakable crockery 6. Melamine formaldehyde resins

45
Subjective

Match the polymers given in Column I with their repeating units given in Column II.

Column I Column II
A. Acrilan 1.
B. Polystyrene 2.
C. Neoprene 3.
D. Novolac 4.
E. Buna-N 5.
6.

Explanation

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

Column I represents name of polymer and Column II represents their molecular formula. The correct matching can be done as

Column I Column II
A. Acrilan 1.
B. Polystyrene 2.
C. Neoprene 3.
D. Novolac 4.
E. Buna-N 5.

46
MCQ (Single Correct Answer)

Assertion (A) Rayon is a semisynthetic polymer and is taken as a better choice than cotton fabric.

Reason (R) Mechanical and aesthetic properties of cellulose can be improved by Acetylation.

A
Assertion and Reason both are correct statement But reason does not explain Assertion.
B
Assertion and Reason both are correct statements and Reason explains the Assertion.
C
Both assertion and reason are wrong statements.
D
Assertion is correct statement and Reason is wrong statement.
E
Assertion is wrong statement and reason is correct statement.
47
MCQ (Single Correct Answer)

Assertion (A) Most of the synthetic polymers are not biodegradable.

Reason (R) Polymerisation process induces toxic character in organic molecules.

A
Assertion and Reason both are correct statement But reason does not explain Assertion.
B
Assertion and Reason both are correct statements and Reason explains the Assertion.
C
Both assertion and reason are wrong statements.
D
Assertion is correct statement and Reason is wrong statement.
E
Assertion is wrong statement and reason is correct statement.