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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Match the polymers given in Column I with their chemical names given in Column II. Column I Column II (i) Nylon 6 (a) Polyvinyl chloride (ii) PVC (b) Polyacrylonitrile (iii) Acrilan (c) Po

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प्रश्न

Match the polymers given in Column I with their chemical names given in Column II.

Column I Column II
(i) Nylon 6 (a) Polyvinyl chloride
(ii) PVC (b) Polyacrylonitrile
(iii) Acrilan (c) Polycaprolactum
(iv) Natural rubber (d) Low-density polythene
(v) LDP (e) cis-polyisoprene
जोड्या लावा/जोड्या जुळवा
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उत्तर

Column I Column II
(i) Nylon 6 (c) Polycaprolactum
(ii) PVC (a) Polyvinyl chloride
(iii) Acrilan (b) Polyacrylonitrile
(iv) Natural rubber (e) cis-polyisoprene
(v) LDP (d) Low-density polythene

Explanation:

Column I Column II
(i) Nylon 6 It is obtained by heating caprolactum with water at a high temperature.
(ii) PVC Polymer of vinyl chloride.
(iii) Acrilan The addition polymerisation of acrylonitrile in presence of a peroxide catalyst leads to the formation of polyacrylonitrile.
(iv) Natural rubber Natural rubber may be considered as a linear polymer of isoprene (2-methyl-1, 3-butadiene) and is also called as cis - 1, 4 - polyisoprene.
(v) LDP The low-density polythene (LDP) is obtained through the free radical addition and H-atom abstraction. It has highly branched structure.
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पाठ 15: Polymers - Multiple Choice Questions (Type - I) [पृष्ठ २२२]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 15 Polymers
Multiple Choice Questions (Type - I) | Q 39 | पृष्ठ २२२

संबंधित प्रश्‍न

Write the molecular formula and structural formula of BHA and BHT.

 


Write chemical reaction to prepare the Dextron polymer:
Dextron


Out of chain growth polymerisation and step growth polymerisation, in which type will you place the following.


What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.


Why should the monomers used in addition polymerisation through free radical pathway be very pure?


Match the polymer of column I with correct monomer of column II.

Column I Column II
(i) High density polythene (a) Isoprene
(ii) Neoprene (b) Tetrafluoroethene
(iii) Natural rubber (c) Chloroprene
(iv) Teflon (d) Acrylonitrile
(v) Acrilan (e) Ethene

Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers.

Column I Column II
(i) Nylon-6,6 (a) Free radical polymerisation
(ii) PVC (b) Ziegler-Natta polymerisation or coordination polymerisation
(iii) HDP (c) Anionic polymerisation
  (d) Condensation polymerisation

Assertion: Olefinic monomers undergo addition polymerisation.

Reason: Polymerisation of vinyl chloride is initiated by peroxides/ persulphates.


Assertion: Polytetrafluoroethene is used in making non-stick cookwares.

Reason: Fluorine has highest electronegativity.


Low density polythene and high density polythene, both are polymers of ethene but there is marked difference in their properties. Explain.


By which reaction ethene is obtained from ethyne?


Which one of the following can be used as monomer in a polymerisation reaction?


The Ziegler Natta catalyst are


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


Orlon fibres are made up of ______.


\[\ce{X + C + Cl2 ->[High temperature][of about 1000 K] Y + CO}\];

\[\ce{Y + 2H2O -> Z + 2HCl}\]

Compound Y is found in polymeric chain structure and is an electron-deficient Molecule. Y must be:


Which of the following statements about low density polythene is false?


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