325024
Statement A : Network polymers are thermosetting polymers. Statement B : Network polymers have high molecular mass.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Network polymers are thermosetting and have high molecular mass.
CHXII15:POLYMERS
325025
Which of the following properties is of the thermosetting polymers?
1 These can be remoulded
2 On heating these become soft
3 These are cross-linked polymers
4 These can be recycled
Explanation:
Thermosetting polymers are cross-linked or heavily branched molecules, which upon heating undergo extensive cross-linking in moulds and become infusible. Once they get set, they can not be reshaped and reused.
CHXII15:POLYMERS
325026
A thermoplastic among the following is
1 Urea formaldehyde resin
2 Nylon
3 Polystyrene
4 Bakelite
Explanation:
Polystyrene is thermoplastic.
CHXII15:POLYMERS
325027
Arrange the following in the increasing order of their intermolecular forces 1. Nylon-6 2. Neoprene 3. Polyvinyl chloride
1 2<3<1
2 1<2<3
3 1<3<2
4 1=2=3
Explanation:
Hydrogen bonds are present in Nylon. Whereas weak vander wall forces present in propene.
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CHXII15:POLYMERS
325024
Statement A : Network polymers are thermosetting polymers. Statement B : Network polymers have high molecular mass.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Network polymers are thermosetting and have high molecular mass.
CHXII15:POLYMERS
325025
Which of the following properties is of the thermosetting polymers?
1 These can be remoulded
2 On heating these become soft
3 These are cross-linked polymers
4 These can be recycled
Explanation:
Thermosetting polymers are cross-linked or heavily branched molecules, which upon heating undergo extensive cross-linking in moulds and become infusible. Once they get set, they can not be reshaped and reused.
CHXII15:POLYMERS
325026
A thermoplastic among the following is
1 Urea formaldehyde resin
2 Nylon
3 Polystyrene
4 Bakelite
Explanation:
Polystyrene is thermoplastic.
CHXII15:POLYMERS
325027
Arrange the following in the increasing order of their intermolecular forces 1. Nylon-6 2. Neoprene 3. Polyvinyl chloride
1 2<3<1
2 1<2<3
3 1<3<2
4 1=2=3
Explanation:
Hydrogen bonds are present in Nylon. Whereas weak vander wall forces present in propene.
325024
Statement A : Network polymers are thermosetting polymers. Statement B : Network polymers have high molecular mass.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Network polymers are thermosetting and have high molecular mass.
CHXII15:POLYMERS
325025
Which of the following properties is of the thermosetting polymers?
1 These can be remoulded
2 On heating these become soft
3 These are cross-linked polymers
4 These can be recycled
Explanation:
Thermosetting polymers are cross-linked or heavily branched molecules, which upon heating undergo extensive cross-linking in moulds and become infusible. Once they get set, they can not be reshaped and reused.
CHXII15:POLYMERS
325026
A thermoplastic among the following is
1 Urea formaldehyde resin
2 Nylon
3 Polystyrene
4 Bakelite
Explanation:
Polystyrene is thermoplastic.
CHXII15:POLYMERS
325027
Arrange the following in the increasing order of their intermolecular forces 1. Nylon-6 2. Neoprene 3. Polyvinyl chloride
1 2<3<1
2 1<2<3
3 1<3<2
4 1=2=3
Explanation:
Hydrogen bonds are present in Nylon. Whereas weak vander wall forces present in propene.
325024
Statement A : Network polymers are thermosetting polymers. Statement B : Network polymers have high molecular mass.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Network polymers are thermosetting and have high molecular mass.
CHXII15:POLYMERS
325025
Which of the following properties is of the thermosetting polymers?
1 These can be remoulded
2 On heating these become soft
3 These are cross-linked polymers
4 These can be recycled
Explanation:
Thermosetting polymers are cross-linked or heavily branched molecules, which upon heating undergo extensive cross-linking in moulds and become infusible. Once they get set, they can not be reshaped and reused.
CHXII15:POLYMERS
325026
A thermoplastic among the following is
1 Urea formaldehyde resin
2 Nylon
3 Polystyrene
4 Bakelite
Explanation:
Polystyrene is thermoplastic.
CHXII15:POLYMERS
325027
Arrange the following in the increasing order of their intermolecular forces 1. Nylon-6 2. Neoprene 3. Polyvinyl chloride
1 2<3<1
2 1<2<3
3 1<3<2
4 1=2=3
Explanation:
Hydrogen bonds are present in Nylon. Whereas weak vander wall forces present in propene.