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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 |
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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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संबंधित प्रश्न
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Which of the following is a natural polymer ? Buna-S, Proteins, PVC
Write the free radical mechanism for the polymerisation of ethene.
Write chemical reaction to prepare the Dextron polymer:
Dextron
Which of the following statements is not true about low-density polythene?
Out of chain growth polymerisation and step growth polymerisation, in which type will you place the following.
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.
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?
Which one of the following polymers are 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?
