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Polymers · Question 4

NEET (UG) 2021MCQEasy📈 Topic in 0% papers+4−1
1

Which one of the following polymers is prepared by addition polymerisation?

  1. Dacron
  2. Teflon
  3. Nylon-66
  4. Novolac

Answer

(2) Teflon

Solution

Teflon is obtained by addition polymerisation of tetrafluoroethene:

nCF2=CF2 -(CF2-CF2)n-

Dacron (ethylene glycol + terephthalic acid), nylon-6,6 (hexamethylenediamine + adipic acid) and novolac (phenol + formaldehyde) are condensation polymers.

Answer: (2)

Out of syllabusNEET (UG) 2021

Keep practising — Polymers

2

Which of the following is a natural polymer?

  1. poly (Butadiene-styrene)
  2. polybutadiene
  3. poly (Butadiene-acrylonitrile)
  4. cis-1,4-polyisoprene
Out of syllabusNEET (UG) 2020
3

The biodegradable polymer is :

  1. nylon-6
  2. Buna-S
  3. nylon-6, 6
  4. nylon-2-nylon 6
Out of syllabusNEET (UG) 2019
4

Regarding cross-linked or network polymers, which of the following statements is incorrect?

  1. They contain covalent bonds between various linear polymer chains.
  2. They are formed from bi- and tri-functional monomers.
  3. Examples are bakelite and melamine.
  4. They contain strong covalent bonds in their polymer chains.
Out of syllabusNEET 2018
5

Natural rubber has

  1. alternate cis- and trans-configuration
  2. random cis- and trans-configuration
  3. all cis-configuration
  4. all trans-configuration.
Out of syllabusNEET 2016 (Phase 1)
6

Which one of the following structures represents nylon 6, 6 polymer?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Out of syllabusNEET 2016 (Phase 2)
7

Caprolactam is used for the manufacture of

  1. teflon
  2. terylene
  3. nylon 6, 6
  4. nylon 6
Out of syllabusAIPMT 2015
8

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

  1. buna - N
  2. nylon 6, 6
  3. nylon 2-nylon 6
  4. PHBV
Out of syllabusAIPMT 2015 (Cancelled)
9

Which of the following organic compounds polymerizes to form the polyester dacron?

  1. Propylene and para HO-(C6H4)-OH
  2. Benzoic acid and ethanol
  3. Terephthalic acid and ethylene glycol
  4. Benzoic acid and para HO-(C6H4)-OH
Out of syllabusAIPMT 2014
10

Which one of the following is an example of thermosetting polymer?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Out of syllabusAIPMT 2014
11

Nylon is an example of

  1. polyamide
  2. polythene
  3. polyester
  4. polysaccharide.
Out of syllabusNEET 2013

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All NEET Chemistry chapters
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Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular StructureHydrogens-Block Elementsp-Block Elements (Group 13 & 14)Environmental ChemistryGeneral Principles of Isolation of Elementsp-Block Elements (Group 15–18)d- and f-Block ElementsCoordination Compounds
Organic ChemistryOrganic Chemistry – Some Basic Principles and TechniquesIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomoleculesPolymersChemistry in Everyday LifePrinciples Related to Practical Chemistry