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NCERT FINGERTIPS-POLYMERS -Assertion And Reason
- Assertion : Buna-S is a copolymer . Reason : Buna-S is formed by c...
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- Assertion : Thermoplastics become hard on heating and soft on cooling....
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- Assertion : Strong interparticle forces exist in thermosetting polyme...
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- Assertion : Low density polythene is used to make buckets , dustbins, ...
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- Assertion : Teflon is used to making oil seals, gaskets and non-stick ...
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- Assertion : Dacron is formed by step growth polymerisation of monomer ...
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- Assertion : The correct order of increasing molecular forces in the gi...
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- Assertion : Bakelite is a thermosetting polymer. Reason : Bakelite...
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- Assertion (A) Network polymers are thermosetting Reason (R ) Network...
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- Assertion : The physical properties of natural rubber can be improved ...
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- Assertion: In vulcanisation of rubber , sulphur cross links are introd...
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- Assertion : The monomer of neoprene is 1, 3- butadiene . Reason : ...
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- Assertion : Most of the synthetic polmers are non-biodegradable . ...
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- Assertion : PHBV is a biodegradable polymer. Reason : PHBV is an ...
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- Assertion (A) Rayon is a semisynthetic polymer and is taken as a bette...
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