Question
Among the following, the correct statement(s) about polymers is(are)
JEE Advanced
Chemistry
Polymers
2022
JEE Advanced 2022 (Paper 2)
JEE Advanced Chemistry Question (2022) — Solution
Options
- A. The polymerization of chloroprene gives natural rubber.
- B. Teflon is prepared from tetrafluoroethene by heating it with persulphate catalyst at high pressures.
- C. PVC are thermoplastic polymers.
- D. Ethene at 350 - 570   K temperature and 1000 - 2000 atm pressure in the presence of a peroxide initiator yields high density polythene.
Answer
C. PVC are thermoplastic polymers.
Step-by-step solution
(A) Polymerization of chloroprene gives synthetic rubber (B) Teflon is manufactured by heating tetrafluoroethene with a free radical or persulphate catalyst at hight pressure. (C) Polyvinyl chloride (PVC) is a thermoplastic polymer and used in making hand bags, vinyl flooring and water pipes. (D) Ethene at 350 - 570   K temperature and 1000 - 2000   atm pressure in the presence of a peroxide initiator yields low density polythene.
Related: Chemistry — Polymers · All PYQ Banks