Which of the following polymers of glucose is stored by animals?

1. Cellulose

2. Amylose

3. Amylopectin

4. Glycogen

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 79%
From NCERT
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Which of the following is not a semisynthetic polymer?

1. Cis-polyisoprene

2. Cellulose nitrate

3. Cellulose acetate

4. Vulcanised rubber

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 67%
From NCERT
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In which of the following polymers ethylene glycol is one of the monomer units?

1.  
2.  
3.  
4.

Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 74%
From NCERT
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Match the polymer of Column I with the correct monomer of Column II

Column I Column II
A. High-density polymer 1. Isoprene
B. Neoprene 2. Tetrafluoroethene
C. Natural rubber 3. Chloroprene
D. Teflon 4. Ethene

Codes

A B C D
1. 2 3 4 1
2. 3 1 4 2
3. 4 3 1 2
4. 4 3 2 1
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 88%
From NCERT
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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. Copolymer of 3-butadiene and                       acrylonitrile 4. Buna-N

Codes

A B C D
1. 2 3 1 4
2. 3 1 4 2
3. 2 4 3 1
4. 4 3 2 1
Subtopic:  Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
 88%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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 |
From NCERT
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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%
From NCERT
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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 |
From NCERT
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