325045
Among the following, the branched chain polymer is
1 polyvinyl chloride
2 bakelite
3 low density polythene
4 high density polythene
Explanation:
PVC and high density polythene are linear polymers. Low density polythene is branched chain polymer while bakelite is cross linked polymer.
KCET - 2018
CHXII15:POLYMERS
325046
Cross-linked or network polymers are usually formed by
1 Bifunctional monomer
2 Trifunctional monomer
3 Monofunctional monomer
4 Both (1) and (2)
Explanation:
Cross-linked or network polymers are formed from bifunctional and trifunctional monomers and contain strong covalent bonds between different linear polymer chains, e.g., bakelite, melamine, etc.
CHXII15:POLYMERS
325047
Regarding cross-linked or network polymers, which of the following statements is incorrect?
1 Examples are bakelite and melamine
2 They contain strong covalent bonds in their polymer chains.
3 They are formed from bi- and tri-functional monomers.
4 They contain covalent bonds between various linear polymer chains.
Explanation:
Linking of chain polymers by strong covalent bonds leads to network like structure. They are also called cross-linked structure due to cross linking. e.g. Melamine, Bakelite etc.
NEET - 2018
CHXII15:POLYMERS
325048
Which of the following polymers do not involve cross linkages?
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII15:POLYMERS
325045
Among the following, the branched chain polymer is
1 polyvinyl chloride
2 bakelite
3 low density polythene
4 high density polythene
Explanation:
PVC and high density polythene are linear polymers. Low density polythene is branched chain polymer while bakelite is cross linked polymer.
KCET - 2018
CHXII15:POLYMERS
325046
Cross-linked or network polymers are usually formed by
1 Bifunctional monomer
2 Trifunctional monomer
3 Monofunctional monomer
4 Both (1) and (2)
Explanation:
Cross-linked or network polymers are formed from bifunctional and trifunctional monomers and contain strong covalent bonds between different linear polymer chains, e.g., bakelite, melamine, etc.
CHXII15:POLYMERS
325047
Regarding cross-linked or network polymers, which of the following statements is incorrect?
1 Examples are bakelite and melamine
2 They contain strong covalent bonds in their polymer chains.
3 They are formed from bi- and tri-functional monomers.
4 They contain covalent bonds between various linear polymer chains.
Explanation:
Linking of chain polymers by strong covalent bonds leads to network like structure. They are also called cross-linked structure due to cross linking. e.g. Melamine, Bakelite etc.
NEET - 2018
CHXII15:POLYMERS
325048
Which of the following polymers do not involve cross linkages?
325045
Among the following, the branched chain polymer is
1 polyvinyl chloride
2 bakelite
3 low density polythene
4 high density polythene
Explanation:
PVC and high density polythene are linear polymers. Low density polythene is branched chain polymer while bakelite is cross linked polymer.
KCET - 2018
CHXII15:POLYMERS
325046
Cross-linked or network polymers are usually formed by
1 Bifunctional monomer
2 Trifunctional monomer
3 Monofunctional monomer
4 Both (1) and (2)
Explanation:
Cross-linked or network polymers are formed from bifunctional and trifunctional monomers and contain strong covalent bonds between different linear polymer chains, e.g., bakelite, melamine, etc.
CHXII15:POLYMERS
325047
Regarding cross-linked or network polymers, which of the following statements is incorrect?
1 Examples are bakelite and melamine
2 They contain strong covalent bonds in their polymer chains.
3 They are formed from bi- and tri-functional monomers.
4 They contain covalent bonds between various linear polymer chains.
Explanation:
Linking of chain polymers by strong covalent bonds leads to network like structure. They are also called cross-linked structure due to cross linking. e.g. Melamine, Bakelite etc.
NEET - 2018
CHXII15:POLYMERS
325048
Which of the following polymers do not involve cross linkages?
325045
Among the following, the branched chain polymer is
1 polyvinyl chloride
2 bakelite
3 low density polythene
4 high density polythene
Explanation:
PVC and high density polythene are linear polymers. Low density polythene is branched chain polymer while bakelite is cross linked polymer.
KCET - 2018
CHXII15:POLYMERS
325046
Cross-linked or network polymers are usually formed by
1 Bifunctional monomer
2 Trifunctional monomer
3 Monofunctional monomer
4 Both (1) and (2)
Explanation:
Cross-linked or network polymers are formed from bifunctional and trifunctional monomers and contain strong covalent bonds between different linear polymer chains, e.g., bakelite, melamine, etc.
CHXII15:POLYMERS
325047
Regarding cross-linked or network polymers, which of the following statements is incorrect?
1 Examples are bakelite and melamine
2 They contain strong covalent bonds in their polymer chains.
3 They are formed from bi- and tri-functional monomers.
4 They contain covalent bonds between various linear polymer chains.
Explanation:
Linking of chain polymers by strong covalent bonds leads to network like structure. They are also called cross-linked structure due to cross linking. e.g. Melamine, Bakelite etc.
NEET - 2018
CHXII15:POLYMERS
325048
Which of the following polymers do not involve cross linkages?