JEE MainHardQuestion 870008
Question
Bakelite (phenol-formaldehyde resin) is a:
- AThermosetting polymer (cross-linked, cannot be remoulded)Correct
- BThermoplastic polymer
- CElastomer
- DBiopolymer
Correct answer
Thermosetting polymer (cross-linked, cannot be remoulded)
Explanation
Bakelite is a thermosetting polymer — once set, it cannot be softened or remoulded by heating (unlike thermoplastics). The extensive cross-linking between chains creates a rigid, hard, infusible network. Used in electrical switches, handles.