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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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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 |
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The Ziegler Natta catalyst are
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