JEE Main · ChemistryHard
Which of the following polymers is a thermosetting plastic?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: B —
Solution
- Thermosetting polymers are cross-linked structures that harden permanently upon heating.
- , , and are thermoplastic polymers.
- is a phenol-formaldehyde resin which forms a highly cross-linked network.
- Hence the answer is (B).
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