325002
Which of the following is a chain growth polymer?
1 Polystyrene
2 Protein
3 Starch
4 Nucleic acid
Explanation:
Chain growth polymers involve a series of reaction, each of which consume a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. It is an important reaction of alkenes and conjugated dienes or indeed of all kinds of compounds that contains C - C double bond.
CHXII15:POLYMERS
325003
Polymers which on heating in a mould become infusible and form hard mass are called
1 Elastomers
2 Fibres
3 Thermoplastic polymers
4 Thermosetting polymers
Explanation:
Thermosetting polymers can be moulded but these cannot be remoulded or reshaped.
CHXII15:POLYMERS
325004
Which one of the following is an example of thermosetting polymers?
1 Nylon 6,6
2 Bakelite
3 Buna-N
4 Neoprene
Explanation:
Bakelite becomes hard on heating and the process is irreversible.
JEE - 2014
CHXII15:POLYMERS
325005
Which polymer among the following does not soften on heating?
1 Bakelite
2 Polythene
3 Polystyrene
4 PVC
Explanation:
Bakelite is a highly cross-linked polymer which does not soften on heating.
CHXII15:POLYMERS
325006
Which statement regarding polymers is not correct?
1 Fibers possess high tensile strength.
2 Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
3 Thermosetting polymers are reusable.
4 Elastomers have polymer chains held together by weak intermolecular forces.
325002
Which of the following is a chain growth polymer?
1 Polystyrene
2 Protein
3 Starch
4 Nucleic acid
Explanation:
Chain growth polymers involve a series of reaction, each of which consume a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. It is an important reaction of alkenes and conjugated dienes or indeed of all kinds of compounds that contains C - C double bond.
CHXII15:POLYMERS
325003
Polymers which on heating in a mould become infusible and form hard mass are called
1 Elastomers
2 Fibres
3 Thermoplastic polymers
4 Thermosetting polymers
Explanation:
Thermosetting polymers can be moulded but these cannot be remoulded or reshaped.
CHXII15:POLYMERS
325004
Which one of the following is an example of thermosetting polymers?
1 Nylon 6,6
2 Bakelite
3 Buna-N
4 Neoprene
Explanation:
Bakelite becomes hard on heating and the process is irreversible.
JEE - 2014
CHXII15:POLYMERS
325005
Which polymer among the following does not soften on heating?
1 Bakelite
2 Polythene
3 Polystyrene
4 PVC
Explanation:
Bakelite is a highly cross-linked polymer which does not soften on heating.
CHXII15:POLYMERS
325006
Which statement regarding polymers is not correct?
1 Fibers possess high tensile strength.
2 Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
3 Thermosetting polymers are reusable.
4 Elastomers have polymer chains held together by weak intermolecular forces.
325002
Which of the following is a chain growth polymer?
1 Polystyrene
2 Protein
3 Starch
4 Nucleic acid
Explanation:
Chain growth polymers involve a series of reaction, each of which consume a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. It is an important reaction of alkenes and conjugated dienes or indeed of all kinds of compounds that contains C - C double bond.
CHXII15:POLYMERS
325003
Polymers which on heating in a mould become infusible and form hard mass are called
1 Elastomers
2 Fibres
3 Thermoplastic polymers
4 Thermosetting polymers
Explanation:
Thermosetting polymers can be moulded but these cannot be remoulded or reshaped.
CHXII15:POLYMERS
325004
Which one of the following is an example of thermosetting polymers?
1 Nylon 6,6
2 Bakelite
3 Buna-N
4 Neoprene
Explanation:
Bakelite becomes hard on heating and the process is irreversible.
JEE - 2014
CHXII15:POLYMERS
325005
Which polymer among the following does not soften on heating?
1 Bakelite
2 Polythene
3 Polystyrene
4 PVC
Explanation:
Bakelite is a highly cross-linked polymer which does not soften on heating.
CHXII15:POLYMERS
325006
Which statement regarding polymers is not correct?
1 Fibers possess high tensile strength.
2 Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
3 Thermosetting polymers are reusable.
4 Elastomers have polymer chains held together by weak intermolecular forces.
325002
Which of the following is a chain growth polymer?
1 Polystyrene
2 Protein
3 Starch
4 Nucleic acid
Explanation:
Chain growth polymers involve a series of reaction, each of which consume a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. It is an important reaction of alkenes and conjugated dienes or indeed of all kinds of compounds that contains C - C double bond.
CHXII15:POLYMERS
325003
Polymers which on heating in a mould become infusible and form hard mass are called
1 Elastomers
2 Fibres
3 Thermoplastic polymers
4 Thermosetting polymers
Explanation:
Thermosetting polymers can be moulded but these cannot be remoulded or reshaped.
CHXII15:POLYMERS
325004
Which one of the following is an example of thermosetting polymers?
1 Nylon 6,6
2 Bakelite
3 Buna-N
4 Neoprene
Explanation:
Bakelite becomes hard on heating and the process is irreversible.
JEE - 2014
CHXII15:POLYMERS
325005
Which polymer among the following does not soften on heating?
1 Bakelite
2 Polythene
3 Polystyrene
4 PVC
Explanation:
Bakelite is a highly cross-linked polymer which does not soften on heating.
CHXII15:POLYMERS
325006
Which statement regarding polymers is not correct?
1 Fibers possess high tensile strength.
2 Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
3 Thermosetting polymers are reusable.
4 Elastomers have polymer chains held together by weak intermolecular forces.
325002
Which of the following is a chain growth polymer?
1 Polystyrene
2 Protein
3 Starch
4 Nucleic acid
Explanation:
Chain growth polymers involve a series of reaction, each of which consume a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. It is an important reaction of alkenes and conjugated dienes or indeed of all kinds of compounds that contains C - C double bond.
CHXII15:POLYMERS
325003
Polymers which on heating in a mould become infusible and form hard mass are called
1 Elastomers
2 Fibres
3 Thermoplastic polymers
4 Thermosetting polymers
Explanation:
Thermosetting polymers can be moulded but these cannot be remoulded or reshaped.
CHXII15:POLYMERS
325004
Which one of the following is an example of thermosetting polymers?
1 Nylon 6,6
2 Bakelite
3 Buna-N
4 Neoprene
Explanation:
Bakelite becomes hard on heating and the process is irreversible.
JEE - 2014
CHXII15:POLYMERS
325005
Which polymer among the following does not soften on heating?
1 Bakelite
2 Polythene
3 Polystyrene
4 PVC
Explanation:
Bakelite is a highly cross-linked polymer which does not soften on heating.
CHXII15:POLYMERS
325006
Which statement regarding polymers is not correct?
1 Fibers possess high tensile strength.
2 Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively.
3 Thermosetting polymers are reusable.
4 Elastomers have polymer chains held together by weak intermolecular forces.
