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प्रश्न
Answer the following in one sentence.
Identify thermoplastic and thermosetting plastic from the following:
- PET
- Urea formaldehyde resin
- Polythene
- Phenol formaldehyde resin
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उत्तर
- Thermoplastic: Polythene, PET
- Thermosetting plastic: Urea formaldehyde resin, Phenol formaldehyde resin
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