Match the 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.  Dacron
C. Ropes and fibers 3. Urea-formaldehyde resins
D. Polyester fabric 4. cis-polyisoprene

Codes

A B C D
1. 2 3 4 1
2. 3 4 1 2
3. 1 4 3 2
4. 4 3 1 2

Subtopic:  Application of Polymers |
 89%
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Match the polymers given in Column I with their repeating units given in Column II.

 

Column I

Column II

A. Acrilan
B. polystyrene
C. Novolac
D. Buna-N

 1. CH2 - CH n
                 |
              C6H5
2.                                                      Cl
                                                      |
CH2 - CH = CH - CH2 - CH2 - CHn

3.  CH2 - CH
               |
              CN n
5. 

 

Codes

          A         B           C           D      

1.       2          3           4           1     

2.       3          1           4           2

3.       1          4           3           2

4.       4          3           2           1

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 83%
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Given below are two statements: 

Assertion (A): Rayon is a semisynthetic polymer and is taken as a better choice than cotton fabric.
Reason (R): Mechanical and aesthetic properties of cellulosic can be improved by Acetylation.

1. Assertion and Reason both are correct statements But reason does not explain Assertion.
2. Assertion and Reason both are correct statements and Reason explains the Assertion.
3. Assertion is the correct statement and Reason is the wrong statement.
4. Assertion is the wrong statement and reason is the correct statement.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 53%
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Select the correct option based on statements below:

Assertion (A): Most of synthetic polymers are not biodegradable.
Reason (R): The polymerization process induces toxic character in organic molecules.
  
1. Both (A) and (R) are true but (R) is not the correct explanation of (A).
2. Both (A) and (R) are true and (R) is the correct explanation of (A).
3. Both (A) and (R) are false.
4. (A) is true but (R) is false.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Select the correct option based on statements below:

Assertion (A): Olefinic monomers undergo addition polymerization.
Reason (R): Polymerisation of vinyl chloride is initiated by peroxides/persulphates.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Classification - Methods of Polymerization & Copolymerization |
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Select the correct option based on statements below:

Assertion (A): Polyamides are best used as fibers because of their high tensile strength.
Reason (R): Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character.
 
1. Both (A) and (R) are true but (R) is not the correct explanation of (A).
2. Both (A) and (R) are true and (R) is the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 58%
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Select the correct option based on statements below:

Assertion (A): For making rubber synthetically, isoprene molecules are polymerized.
Reason (R): Neoprene (a polymer of chloroprene) is a synthetic rubber.
 
1. Both (A) and (R) are true but (R) is not the correct explanation of (A).
2. Both (A) and (R) are true and (R) is the correct explanation of (A).
3. (A) is false but (R) is true.
4. (A) is true but (R) is false.
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Select the correct option based on statements below:

Assertion (A): Network polymers are thermosetting.
Reason (R): Network polymers have a high molecular mass.
 
1. Both (A) and (R) are true but (R) is not the correct explanation of (A).
2. Both (A) and (R) are true and (R) is the correct explanation of (A).
3. Both (A) and (R) are false.
4. (A) is true but (R) is false.
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 63%
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Select the correct option based on statements below:

Assertion (A): Polytetrafluoroethylene is used in making non-stick cookware.
Reason (R): Fluorine has the highest electronegativity.
  
1. Both (A) and (R) are true but (R) is not the correct explanation of (A).
2. Both (A) and (R) are true and (R) is the correct explanation of (A).
3. Both (A) and (R) are false.
4. (A) is true but (R) is false.
Subtopic:  Application of Polymers |
 68%
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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
B. Nylon
C. Cellulose
D. Protein
E. RNA

1. Glycosidic linkage
2. Ester linkage
3. Phosphcxdiester linkage
4. Amide linkage
5. Amide

Codes

Options:   A    B    C    D    E 
1. 2 5 1 4 3
2. 3 1 5 2 4
3. 5 4 3 2 1
4. 4 3 2 1 5

       

Subtopic:  Classification - Methods of Polymerization & Copolymerization |
 77%
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