MHT CET202522 Apr 2025Morning ShiftChemistryPolymersActual
Identify the monomer of natural rubber.
Options
- AIsoprene
- BPolyacrylonitrile
- CChloroprene
- DTetrafluoroethylene
Correct answer
A. Isoprene
Step-by-step solution
Natural rubber is a polymer whose monomer unit is isoprene , or 2-methyl-1,3-butadiene. Polymerization occurs via a cis-1,4 addition to form cis-1,4-polyisoprene. Option analysis: A) Isoprene is the correct monomer. B) Polyacrylonitrile is a polymer, not a monomer. C) Chloroprene is the monomer for neoprene, a synthetic rubber. D) Tetrafluoroethylene is the monomer for Teflon. Only A correctly identifies the monomer of natural rubber.