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प्रश्न
What is the role of t-butyl peroxide in the polymerization of ethene?
उत्तर
In polymerisation of ethene, source of free radical is needed to initiate the chain reaction. Such free radicals are usually produced by decomposition of peroxides like t-butyl peroxide or benzoyl peroxide.
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संबंधित प्रश्न
Which of the following is a natural polymer ? Buna-S, Proteins, PVC
Write chemical reaction to prepare the Dextron polymer:
Dextron
What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.
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 |
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.
By which reaction ethene is obtained from ethyne?
Which one of the following polymers are prepared by addition polymerisation?
Which one of the following polymers is prepared by addition polymerisation?
Which of the following statements about low density polythene is false?
