YESPYQ Start Practice
🩺 NEET🧪 Chemistry

Among the following, the correct statement(s) about polymers is/are: [JEE Advanced 2022, Paper-2]

Q1 FREE PREVIEW
Among the following, the correct statement(s) about polymers is/are: [JEE Advanced 2022, Paper-2]
aThe polymerization of chloroprene gives natural rubber.
bTeflon is prepared from tetrafluoroethene by heating it with a persulphate catalyst at high pressures.
cPVC are thermoplastic polymers.
dEthene at 350-570 K temperature and 1000-2000 atm pressure in the presence of a peroxide initiator yields high-density polythene.
✓ Correct answer: b) Teflon is prepared from tetrafluoroethene by heating it with a persulphate catalyst at high pressures.
ExplanationThe correct statements about polymers are B and C. A. The polymerization of chloroprene gives natural rubber.This statement is incorrect.Natural rubber is a polymer of isoprene (2- methyl-1,3-butadiene).The polymerization of chloroprene (2- chloro-1,3-butadiene) yields neoprene, which is a synthetic rubber.B. Teflon is prepared from tetrafluoroethene by heating it with a persulphate catalyst at high pressures.This statement is correct.Teflon (polytetrafluoroethylene) is indeed manufactured by the polymerization of tetrafluoroethene (CF2C ) using a free radical initiator, such as a persulphate catalyst (e.g., ammonium persulphate), under high pressure.C. PVC are thermoplastic polymers.This statement is correct.Polyvinyl chloride (PVC) is a thermoplastic polymer, meaning it can be softened upon heating and hardened upon cooling repeatedly without significant chemical

Practice more NEET Chemistry PYQs

See every question on Polymers, or browse the full NEET question bank.

See all questions on Polymers →