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प्रश्न
Bakelite is a copolymer of ______.
विकल्प
HCHO and melamine.
HCHO and phenol.
phenol and ethylene.
none of these.
MCQ
रिक्त स्थान भरें
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उत्तर
Bakelite is a copolymer of HCHO and phenol.
Explanation:
Bakelite is a thermosetting plastic formed by the polymerisation of phenol and formaldehyde (HCHO). It is a copolymer because it is made from two different monomers. Bakelite is hard, heat-resistant and used in electrical switches and handles of utensils.
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