Which of the following is an elastomer ?
Correct answer: A. Thiokol
- A. Thiokol
- B. Phenol formaldehyde
- C. Urea formaldehyde
- D. Polystyrene
Explanation
Thiokol is a polysulfide rubber, so it behaves as an elastomer and can undergo large reversible deformation. Phenol-formaldehyde and urea-formaldehyde are thermosetting resins, while polystyrene is a thermoplastic.
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