JEE Main Chemistry question
Not in JEE Main or NEET syllabus
How many of the following are thermosetting polymers?
Polyethylene, Polystyrene, Teflon, Bakelite, Melamine, Urea formaldehyde resin.
Answer: 3
Solution
Checking each: Polyethylene, polystyrene and Teflon are all linear addition polymers that soften on heating — they are thermoplastics, not thermosets. Bakelite (phenol-formaldehyde), melamine
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account