Q. Assertion : Teflon is chemically inert substance.
Reason : Chloroform when treated with antimony trifluoride gives teflon.

 1699  170 AIIMSAIIMS 2015Polymers Report Error

Solution:

When chloroform is treated with antimony trifluoride and hydrofluoric acid, tetrafluoroethylene is formed. On polymerisation, tetrafluoroethylene forms teflon.