NEET Previous Year Questions (2014-20): Polymers Notes | EduRev

Chemistry 31 Years NEET Chapterwise Solved Papers

NEET : NEET Previous Year Questions (2014-20): Polymers Notes | EduRev

The document NEET Previous Year Questions (2014-20): Polymers Notes | EduRev is a part of the NEET Course Chemistry 31 Years NEET Chapterwise Solved Papers.
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Q.1. Which of the following is a natural polymer?      (2020)
A: polybutadiene 

B: poly (Butadiene-acrylonitrile) 
C: cis-1,4-polyisoprene 
D: poly (Butadiene-styrene)
Ans: 
C
Solution:
NEET Previous Year Questions (2014-20): Polymers Notes | EduRev

Q.2. The biodegradable polymer is:     (2019)
A: Nylon-6,6
B: Nylon-2-Nylon 6
C: Nylon-6
D: Buna-S

Ans: B

Q.3. Regarding cross-linked or network polymers, which of the following statements is incorrect?    (2018)
A: They contain covalent bonds between various linear polymer chains.
B: They are formed from bi-and tri-functional monomers.
C: Examples are bakelite and melamine.
D: They contain strong covalent bonds in their polymer chains.
Ans:
D
Solution:

Cross-linked or network polymers are usually formed from bi-functional & tri-functional monomers and contains strong covalent bond between various linear polymer chains like Melamine, Bakelite etc.

Q.4. Natural rubber has:    (2016)
A: Random cis - and trans-configuration
B: All cis-configuration
C: All trans-configuration
D: Alternate cis - and trans - configuration
Ans: 
B
Solution:

The repeating unit in natural rubber has the cis-configurations with chain extensions on the same side of the ethylene double bond, which is essential for elasticity. If the configuration is trans, the polymer is hard plastic.
NEET Previous Year Questions (2014-20): Polymers Notes | EduRev
All cis-configuration.

Q.5. Biodegradable polymer which can be produced from glycine and aminocaproic acid is:    (2015)
A: Nylon 6, 6
B: Nylon 2 – nylon 6
C: PHBV
D: Buna – N
Ans:
B
Solution:

Nylon-2-nylon-6 or Nylon-2,6 is an alternating polyamide co-polymer of glycine and amino caproic acid.

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev

Q.6. Which of the following organic compounds polymerizes to form the polyester Dacron?   (2014)
A: Terephthalic acid and ethylene glycol
B: Benzoic acid and para HO − (C6H4) − OH
C: Propylene and para HO − (C6H4) − OH
D: Benzoic acid and ethanol
Ans: 
A
Solution:

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev

Q.7. Which one of the following is an example of a thermosetting polymer ?    (2014)
A:

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev
B:

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev
C:

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev
D:

NEET Previous Year Questions (2014-20): Polymers Notes | EduRev
Ans: 
B
Solution:
Bakelite is a thermosetting polymer

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