MCQs based questions and answers on Polymers in organic chemistry.
High density polyethylene has _______ type of structure.
- Cross-linked
- Branch-chain
- Linear
- Any one of these
Question’s Answer: Linear
In which polymer the strength of intermolecular forces is maximum?
- Elastomers
- Cross-linked polymer
- Fiber
- Thermoplastic
Question’s Answer: Cross-linked polymer
Monomer of natural rubber is
- 1,3-Butadiene
- 1,3-Pentadiene
- 1,2-Butadiene
- 2-Methyl-1,3-butadiene
Question’s Answer: 2-Methyl-1,3-butadiene
Which is homopolymer?
- Starch
- Orlon
- Plexiglas
- All of these
Question’s Answer: All of these
The Nylon-66 is ________ type of polymer.
- Polyester
- Polyamide
- Addition
- Homopolymer
Question’s Answer: Polyamide
Which is branch-chain polymer?
- Terylene
- Glycogen
- PVC
- Orlon
Question’s Answer: Glycogen
Polyamide linkage is present in
- Nylon
- Protein
- Silk
- All of these
Question’s Answer: All of these
In propagation step the reaction intermediate of radical polymerization is
- Free radical
- Carbanion
- Carbocation
- Carbene
Question’s Answer: Free radical
In which polymerization branching of chain cannot he possible?
- Free radical
- Cationic
- Anionic and Ziegler-Natta
- Anionic
Question’s Answer: Anionic and Ziegler-Natta
Cationic polymerization is initiated by
- BuL1
- NaNH2
- BF3
- Both B. and C
Question’s Answer: BuL1
Which the following type of polymerization is used for the preparation of synthetic rubber?
- Cationic
- Ziegler-Natta
- Free radical
- Anionic
Question’s Answer: Free radical
Ziegler-Natta catalysts is
- (C₂H5)3Al/TiCI4
- TiCl4
- (C2H5)3Al
- (CH3)3B/TiCl2
Question’s Answer: (C₂H5)3Al/TiCI4
Gutta-percha is
- Trans-polyisoprene
- Cis-poly isoprene
- Polyethylene
- Polyisobutylene
Question’s Answer: Trans-polyisoprene
Which is natural polymer?
- Nylon-66
- Starch
- Polyester
- Buna- S, SBR
Question’s Answer: Starch
Which is not a biodegradable polymer?
- Protein
- PVC
- Nucleic acid
- Cellulose
Question’s Answer: PVC
Which is the Monomer of Nylon-6?
- Caprolactam
- Hexamethylenediamine
- Adipic acid
- All of these
Question’s Answer: Caprolactam
Monomer of Teflon is
- Monochloroethene
- 1,2-Difluoroethene
- Tetrafluoroethene
- 1,1,2-Trifluoroethene
Question’s Answer: Tetrafluoroethene
Which is strong adhesive?
- Melamine-formaldehyde resin
- Epoxy resin
- Alkyd resins
- Bakelite
Question’s Answer: Epoxy resin
Which is thermoplastic?
- Nylon
- Dcaron
- Polythene
- All of A, B, and C
Question’s Answer: Dcaron
The process of vulcanization of rubber makes it
- Less elastic
- Soft
- Hard
- None of A, B, and C
Question’s Answer: Hard
Which is true regarding Monomer of neoprene fubber?
- 2-chloro-1,3-butadiene
- 1-chloro-1,3-butadiene
- 2-Bromo-1,3-butadiene
- 2-Methyl-1,3-butadiene
Question’s Answer: 2-chloro-1,3-butadiene
Glyptal is a copolymer of
- Terephthalic acid and glycerol
- Terephthalic acid and glycol
- Phthalic acid and glycol
- Phthalic acid and glycerol
Question’s Answer: Terephthalic acid and glycerol
Which is used to make non-stick material?
- Vinyl cyanide
- Vinyl chloride
- Tetrafluoroethene
- Styrene
Question’s Answer: Tetrafluoroethene
Which statements are true for linear polymers?
- Structure is well packed in nature
- Linear polymers may be condensation as well as addition polymers
- Linear polymers have higher density, higher melting point and higher tensile strength
- All are true
Question Answer: All are true
Which is linear polymer?
- Protein
- Polypeptide
- Starch
- Phenol-formaldehyde resin
Question’s Answer: Polypeptide
Which type of polymers the Vulcanized rubbers is?
- Linear
- Branch-chain
- Cross-linked
- Any one of these
Question’s Answer: Cross-linked
Orlon is polymer of
- Styrene
- Acrylonitrile
- Vinyl chloride
- CF2=CF2
Question’s Answer: Acrylonitrile
Which contains isoprene units?
- Dacron
- Nylong-6,6
- Polyethylene
- Natural rubber
Question’s Answer: Natural rubber
Which is not true about polymers?
- Polymers do not carry any charge
- Polymers have high viscosity
- Polymers have low molecular weight
- Polymers scatter light
Question’s Answer: Polymers have low molecular weight
What type of intermolecular force present in nylon-66?
- Hydrogen bond
- Van der Waal
- Dipole-dipole interactions
- Sulfide linkage
Question’s Answer: Hydrogen bond
Dacron is an example of
- Elastomer
- Thermoplastic
- Fiber
- Thermosetting polymer
Question’s Answer: Fiber
The monomer of natural rubber is
- Isoprene
- Butadiene
- Chloroprene
- None of A, B, and C
Question’s Answer: Isoprene
Which polymers is prepared by addition polymerization technique?
- Cellulose
- Starch
- Nylon
- Polyethylene
Question’s Answer: Polyethylene
What types of forces are present in polymers?
- van der Waals forces
- Dipole-dipole forces
- H-bonding
- All of A, B, and C
Question’s Answer: All of A, B, and C
Which macromolecules are cross-linked?
- Polyesters
- Polyurethanes
- High density polyethylene
- Polyamides
Question’s Answer: Polyurethanes
Which polymer copolymer?
- SBR
- Polystyrene
- PVC
- Polyethylene
Question’s Answer: SBR
Which methods gives the number-average molecular weight of a polymer?
- Light scattering method
- Sedimentation equilibrium method
- Osmotic method
- Viscosity method
Question’s Answer: Osmotic method
Which is a natural polymer
- Nylon
- Cellulose
- Leucite
- Polystyrene
Question’s Answer: Cellulose
Which statements is not true regarding the structure of DNA?
- It has a double helix structure
- There are hydrogen bonds in its structure
- Unlike RNA, there is no fixed ratio of bases in DNA
- The code for protein synthesis is given by the sequence of bases in DNA
Question’s Answer: Unlike RNA, there is no fixed ratio of bases in DNA
Which methods does not give the weight-average molecular weight?
- Osmotic method
- Sedimentation velocity
- Light scattering
- Sedimentation equilibrium
Question’s Answer: Osmotic method
In the osmotic method for the determination of molecular weight of polymers, molecular weight can be calculated from the intercept of the
- π versus c graph
В. π /c versus RT/M graph
- π/с versus c graph
- π /с versus I/M graph
Question’s Answer: π/с versus c graph
A colloidal system in which both the dispersion phase and dispersed phase are liquid is
- Emulsion
- Smoke
- Whipped cream
- Mist
Question’s Answer: Emulsion
Which polymers is prepared by condensation polymerization technique?
- Polystyrene
- Polyethylene
- Starch
- Nylon
Question’s Answer: Nylon
Which compounds acts as free radical initiator?
- Lewis acid
- Carbocations
- Peroxides
- High energy radiation
Question’s Answer: Peroxides
Which compounds acts as cationic initiator?
- Carbocations
- Lewis acid
- High energy radiation
- Peroxides
Question’s Answer: Lewis acid
Which compounds acts as anionic initiator?
- Lewis acid
- Peroxides
- High energy radiation
- Lewis bases
Question’s Answer: Lewis bases
The polymers which do not soften by heat and pressure are called ______ .
- Copolymers
- Thermoplastics
- Thermosets
- None of A, B, and C
Question’s Answer: Thermosets
Stereo chemical configuration of a vinyl type polymer may be
- Syndiotactic
- Isotactic
- Atactic
- All of A, B, and C
Question’s Answer: All of A, B, and C
- High density polyethylene (HDP) can be produced under normal conditions temperature and pressure using
- Pt
- Zeigler-Natta catalyst
- V
- Ni
Question’s Answer: Zeigler-Natta catalyst
Urea-formaldehyde resin belong to class of polymers called ______ .
- Fibers
- Plasticizer
- Thermoplastics
- Thermosetts
Question’s Answer: Thermosetts
Polyesters belong to class of polymers called ______ .
- Fibers
- Thermosetts
- Thermoplastics
- Plasticizer
Question’s Answer: Fibers
PVC belongs to class of polymers called ______ .
- Fibers
- Thermosetts
- Plasticizer
- Thermoplastics
Question’s Answer: Thermoplastics
A high polymer is one in which the number of repeating units is in excess of about
- 10
- 1000
- 100
- None of A, B, and C
Question’s Answer: 1000
The number of repeat units in polymer backbone is called ______ .
- Degree of polymerization
- Degree of ionization
- Degree of dissociation
- None of A, B, and C
Question’s Answer: Degree of polymerization
The polymers which take on new shapes by the application of heat and pressure are called ______ .
- Copolymers
- Thermoplastics
- Thermosets
- None of A, B, and C
Question’s Answer: Thermoplastics
Soft drinks and baby feeding bottles are generally made up
- Polyester
- Polystyrene
- Polyamide
- Polyurethane
Question’s Answer: Polystyrene
- Which polymers is/are chlorinated?
- Orlon
- Dacron
- Neoprene
- None of these
Question’s Answer: Neoprene
SAN is a polymer of
- Acrylonitrile
- Styrene
- Both A and B
- Vinyl chloride
Question’s Answer: Both A and B
Bakelite is an example of
- Thermosetting polymer
- Fiber
- Thermoplastic
- Elastomer
Question’s Answer: Thermosetting polymer
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