MHT CET202526 Apr 2025Evening ShiftChemistryPolymersActual
Identify the monomers used in preparation of dacron .
Options
- AC ₆ H ₅ OH and CH ₂ O
- BH ₂ C = CH - CH = CH ₂ and H ₂ C = CH - CN
- CH ₂ C = CH - CN and C ₆ H ₅ OH
Correct answer
C. H ₂ C = CH - CN and C ₆ H ₅ OH
Step-by-step solution
Dacron (Terylene) is a polyester formed by condensation polymerization between a dicarboxylic acid and a diol. The specific monomers are ethylene glycol (ethane-1,2-diol) and terephthalic acid (benzene-1,4-dicarboxylic acid). Option A represents phenol and formaldehyde, monomers for Bakelite . Option B contains 1,3-butadiene and acrylonitrile, monomers for Buna-N rubber . Option D includes acrylonitrile and phenol, unrelated to polyester synthesis. Option C contains the correct monomers: HO ( CH ₂)₂ OH (ethylene gl