Polymer – JEE Main Previous Year Questions with Solutions


JEE Main Previous Year Papers Questions of Chemistry with Solutions are available at eSaral. Practicing JEE Main chapter wise questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas.     Simulator   Previous Years AIEEE/JEE Main Questions
Q. Buna–N synthetic rubber is a copolymer of :- [AIEEE-2009]

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Sol. (1) Buna-N is actually abbrebiated form, where Bu represents 1, 3-butadiene, Na represents sodium and N represents nitrile (acrylonitrile). Thus, Buna-N is a copolymer of 1, 3-butadiene and acrylonitrile usually copolymer of 1, 3-butadiene, and acrylonitrile usually ploymerise in the presence of sodium.

Q. The polymer containing strong intermolecular forces e.g. hydrogen bonding, is :- (1) natural rubber (2) teflon (3) nylon 6, 6 (4) polystyrene [AIEEE-2010]

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Sol. (3)

Q. Thermosetting polymer, Bakelite is formed by the reaction of phenol with :- (1) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}$ (2) $\mathrm{CH}_{3} \mathrm{CHO}$ (3) HCHO (4) HCOOH [AIEEE-2011]

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Sol. (3) Bakelite is a thermosetting polymer formed by the condensation reaction of phenol with HCHO in the presense of conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$ It is thus, a cross-linked polymer in which condesation takes place at O- and p- positions So HCHO is the corerect option.

Q. The species which can best serve as an initiator for the cationic polymerization is :- (1) BuLi (3) HNO $_{3}$ (4) $\mathrm{AlCl}_{3}$ [AIEEE-2012]

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Sol. (4) Electron – deficient species (Lawis acid) like $\mathrm{AlCl}_{3}, \mathrm{BF}_{3}$ etc. are is used as initiator for cationic polymerisation.

Q. Which one is classified as a condensation polymer? (1) Teflon (2) Acrylonitrile (3) Dacron (4) Neoprene [JEE-Main 2014]

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Sol. (3)

Q. Which one of the following structures represents the neoprene polymer :- [JEE-Main(Online) – 2015]

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Sol. (3)

Q. Which polymer is used in the manufacture of paints and lacquers ? (1) Polypropene (2) Poly vinyl chloride (3) Bakelite (4) Glyptal [JEE- Main – 2015]

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Sol. (4)

Q. Which of the following statements about low density polythene is FALSE ? (1) It is used in the manufacture of buckets, dust-bins etc. (2) Its synthesis requires high pressure (3) It is a poor conductor of electricity (4) Its synthesis requires dioxygen or a peroxide initiator as a catalyst. [JEE Main 2016]

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Sol. (1) Low density polythene : It is obtained by the polymerisation of ethene under high presure of 1000-2000 atm. at a temp. of 350 K to 570 K in the pressure of traces of dioxygen or a peroxide

Q. Assertion : Rayon is a semisynthetic polymer whose properties are better than natural cotton. Reason : Mechanical and aesthetic properties of cellulose can be improved by acetylation. (1) Both assertion and reason are incorrect (2) Assertion is incorrect statement, but the reason is correct (3) Both assertion and reason are correct, but the reason is not the correct explanation for the assertion (4) Both assertion and reason are correct, and the reason is the correct explanation for the assertion [JEE Main (Online) 2016]

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Sol. (4)

Q. Which of the following polymers is synthesized using a free radical polymerization technique ? (1) Terylene (2) Teflon (3) Nylon 6,6 (4) Melamine polymer [JEE Main (Online) 2016]

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Sol. (2) [esquestion] The formation of which of the following polymers involves hydrolysis reaction ? (1) Nylon 6 (2) Bakelite (3) Nylon 6, 6 (4) Terylene #tag# [JEE – Main 2017]

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Comments
  • February 22, 2021 at 11:14 am

    noice

    1
  • February 14, 2021 at 9:34 pm

    thank god …i answered all the questions 🥵

    2
  • d
    December 22, 2020 at 12:12 am

    thanks

    4
  • December 19, 2020 at 6:26 pm

    Thank you sir but please upload more questions

    7
  • October 10, 2020 at 8:14 pm

    Thanks

    2
  • September 2, 2020 at 11:43 am

    tnks so much sir add some more questions

    0
    • v
      December 22, 2020 at 12:11 am

      soon

      0
  • August 31, 2020 at 12:02 am

    Rest is good.
    Keep it up!

    0
  • August 30, 2020 at 11:55 pm

    *Rest

    0
  • August 30, 2020 at 11:55 pm

    Please upload the test too!

    0
  • August 29, 2020 at 1:55 pm

    Boobs are nice

    0
    • M
      January 28, 2021 at 1:43 pm

      Somewhat better….waste of time!

      0
  • August 28, 2020 at 1:10 pm

    Waste Of time….. latest questions aren’t present

    0
  • August 26, 2020 at 3:06 pm

    Ok..good..

    0
  • August 25, 2020 at 7:33 pm

    some what better…………

    0
  • August 24, 2020 at 2:09 pm

    waste of time…………………………………………………..

    0
  • August 19, 2020 at 10:17 pm

    nylon-6 is the answer to “jee main 2017 question’ in the solution of last question

    0
  • August 12, 2020 at 6:06 pm

    nice work from your team
    keep it up.

    0
  • August 10, 2020 at 6:17 pm

    Nice

    0
  • July 21, 2020 at 12:21 pm

    Great compilation!!

    0
  • June 9, 2020 at 4:47 pm

    Informative.

    0