MHT CET Medical202621 April 2026Evening ShiftChemistryPolymersActual
Which one of the following polymers is prepared by addition polymerisation?
Options
- ATeflon
- BNylon-6,6
- CNovolac
- DDacron
Correct answer
A. Teflon
Step-by-step solution
Teflon (polytetrafluoroethylene) is prepared by the addition polymerisation of tetrafluoroethylene ( CF₂=CF₂ ) under high pressure in the presence of a free radical catalyst. Nylon-6,6 is a condensation polymer formed from hexamethylenediamine and adipic acid. Novolac is a condensation polymer formed from phenol and formaldehyde. Dacron (polyethylene terephthalate) is a condensation polymer formed from ethylene glycol and terephthalic acid. Answer: Teflon