Advertisements
Advertisements
Question
Write the mechanism of free radical polymerization of ethene.
Advertisements
Solution
Free radical mechanism for polymerisation of ethene
Chain-initiating step
Chain-propagating step
Chain-terminating step
APPEARS IN
RELATED QUESTIONS
How are polythene and neoprene prepared?
What is the role of t-butyl peroxide in the polymerization of ethene?
Write the free radical mechanism for the polymerisation of ethene.
Which of the following statements is not true about low-density polythene?
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 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: Polytetrafluoroethene is used in making non-stick cookwares.
Reason: Fluorine has highest electronegativity.
Which one of the following polymers is prepared by addition polymerisation?
Which of the following statements about low density polythene is false?
