Polymers MCQs [Organic Chemistry]

MCQs based questions and answers on Polymers in organic chemistry.

High density polyethylene has _______ type of structure.

  1. Cross-linked
  2. Branch-chain
  3. Linear
  4. Any one of these

Question’s Answer: Linear

In which polymer the strength of intermolecular forces is maximum?

  1. Elastomers
  2. Cross-linked polymer
  3. Fiber
  4. Thermoplastic

Question’s Answer: Cross-linked polymer

Monomer of natural rubber is

  1. 1,3-Butadiene
  2. 1,3-Pentadiene
  3. 1,2-Butadiene
  4. 2-Methyl-1,3-butadiene

Question’s Answer: 2-Methyl-1,3-butadiene

Which is homopolymer?

  1. Starch
  2. Orlon
  3. Plexiglas
  4. All of these

Question’s Answer: All of these

The Nylon-66 is ________ type of polymer.

  1. Polyester
  2. Polyamide
  3. Addition
  4. Homopolymer

Question’s Answer: Polyamide

Which is branch-chain polymer?

  1. Terylene
  2. Glycogen
  3. PVC
  4. Orlon

Question’s Answer: Glycogen

Polyamide linkage is present in

  1. Nylon
  2. Protein
  3. Silk
  4. All of these

Question’s Answer: All of these

In propagation step the reaction intermediate of radical polymerization is

  1. Free radical
  2. Carbanion
  3. Carbocation
  4. Carbene

Question’s Answer: Free radical

In which polymerization branching of chain cannot he possible?

  1. Free radical
  2. Cationic
  3. Anionic and Ziegler-Natta
  4. Anionic

Question’s Answer: Anionic and Ziegler-Natta

Cationic polymerization is initiated by

  1. BuL1
  2. NaNH2
  3. BF3
  4. Both B. and C

Question’s Answer: BuL1

Which the following type of polymerization is used for the preparation of synthetic rubber?

  1. Cationic
  2. Ziegler-Natta
  3. Free radical
  4. Anionic

Question’s Answer: Free radical

Ziegler-Natta catalysts is

  1. (C₂H5)3Al/TiCI4
  2. TiCl4
  3. (C2H5)3Al
  4. (CH3)3B/TiCl2

Question’s Answer: (C₂H5)3Al/TiCI4

Gutta-percha is

  1. Trans-polyisoprene
  2. Cis-poly isoprene
  3. Polyethylene
  4. Polyisobutylene

Question’s Answer: Trans-polyisoprene

Which is natural polymer?

  1. Nylon-66
  2. Starch
  3. Polyester
  4. Buna- S, SBR

Question’s Answer: Starch

Which is not a biodegradable polymer?

  1. Protein
  2. PVC
  3. Nucleic acid
  4. Cellulose

Question’s Answer: PVC

Which is the Monomer of Nylon-6?

  1. Caprolactam
  2. Hexamethylenediamine
  3. Adipic acid
  4. All of these

Question’s Answer: Caprolactam

Monomer of Teflon is

  1. Monochloroethene
  2. 1,2-Difluoroethene
  3. Tetrafluoroethene
  4. 1,1,2-Trifluoroethene

Question’s Answer: Tetrafluoroethene

Which is strong adhesive?

  1. Melamine-formaldehyde resin
  2. Epoxy resin
  3. Alkyd resins
  4. Bakelite

Question’s Answer: Epoxy resin

Which is thermoplastic?

  1. Nylon
  2. Dcaron
  3. Polythene
  4. All of A, B, and C

Question’s Answer: Dcaron

The process of vulcanization of rubber makes it

  1. Less elastic
  2. Soft
  3. Hard
  4. None of A, B, and C

Question’s Answer: Hard

Which is true regarding Monomer of neoprene fubber?

  1. 2-chloro-1,3-butadiene
  2. 1-chloro-1,3-butadiene
  3. 2-Bromo-1,3-butadiene
  4. 2-Methyl-1,3-butadiene

Question’s Answer: 2-chloro-1,3-butadiene

Glyptal is a copolymer of

  1. Terephthalic acid and glycerol
  2. Terephthalic acid and glycol
  3. Phthalic acid and glycol
  4. Phthalic acid and glycerol

Question’s Answer: Terephthalic acid and glycerol

Which is used to make non-stick material?

  1. Vinyl cyanide
  2. Vinyl chloride
  3. Tetrafluoroethene
  4. Styrene

Question’s Answer: Tetrafluoroethene

Which statements are true for linear polymers?

  1. Structure is well packed in nature
  2. Linear polymers may be condensation as well as addition polymers
  3. Linear polymers have higher density, higher melting point and higher tensile strength
  4. All are true

Question Answer: All are true

Which is linear polymer?

  1. Protein
  2. Polypeptide
  3. Starch
  4. Phenol-formaldehyde resin

Question’s Answer: Polypeptide

Which type of polymers the Vulcanized rubbers is?

  1. Linear
  2. Branch-chain
  3. Cross-linked
  4. Any one of these

Question’s Answer: Cross-linked

Orlon is polymer of

  1. Styrene
  2. Acrylonitrile
  3. Vinyl chloride
  4. CF2=CF2

Question’s Answer: Acrylonitrile

Which contains isoprene units?

  1. Dacron
  2. Nylong-6,6
  3. Polyethylene
  4. Natural rubber

Question’s Answer: Natural rubber

Which is not true about polymers?

  1. Polymers do not carry any charge
  2. Polymers have high viscosity
  3. Polymers have low molecular weight
  4. Polymers scatter light

Question’s Answer: Polymers have low molecular weight

What type of intermolecular force present in nylon-66?

  1. Hydrogen bond
  2. Van der Waal
  3. Dipole-dipole interactions
  4. Sulfide linkage

Question’s Answer: Hydrogen bond

Dacron is an example of

  1. Elastomer
  2. Thermoplastic
  3. Fiber
  4. Thermosetting polymer

Question’s Answer: Fiber

The monomer of natural rubber is

  1. Isoprene
  2. Butadiene
  3. Chloroprene
  4. None of A, B, and C

Question’s Answer: Isoprene

Which polymers is prepared by addition polymerization technique?

  1. Cellulose
  2. Starch
  3. Nylon
  4. Polyethylene

Question’s Answer: Polyethylene

What types of forces are present in polymers?

  1. van der Waals forces
  2. Dipole-dipole forces
  3. H-bonding
  4. All of A, B, and C

Question’s Answer: All of A, B, and C

Which macromolecules are cross-linked?

  1. Polyesters
  2. Polyurethanes
  3. High density polyethylene
  4. Polyamides

Question’s Answer: Polyurethanes

Which polymer copolymer?

  1. SBR
  2. Polystyrene
  3. PVC
  4. Polyethylene

Question’s Answer: SBR

Which methods gives the number-average molecular weight of a polymer?

  1. Light scattering method
  2. Sedimentation equilibrium method
  3. Osmotic method
  4. Viscosity method

Question’s Answer: Osmotic method

Which is a natural polymer

  1. Nylon
  2. Cellulose
  3. Leucite
  4. Polystyrene

Question’s Answer: Cellulose

Which statements is not true regarding the structure of DNA?

  1. It has a double helix structure
  2. There are hydrogen bonds in its structure
  3. Unlike RNA, there is no fixed ratio of bases in DNA
  4. 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?

  1. Osmotic method
  2. Sedimentation velocity
  3. Light scattering
  4. 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

  1. π versus c graph

В.  π /c versus RT/M graph

  1. π/с versus c graph
  2. 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

  1. Emulsion
  2. Smoke
  3. Whipped cream
  4. Mist

Question’s Answer: Emulsion

Which polymers is prepared by condensation polymerization technique?

  1. Polystyrene
  2. Polyethylene
  3. Starch
  4. Nylon

Question’s Answer: Nylon

Which compounds acts as free radical initiator?

  1. Lewis acid
  2. Carbocations
  3. Peroxides
  4. High energy radiation

Question’s Answer: Peroxides

Which compounds acts as cationic initiator?

  1. Carbocations
  2. Lewis acid
  3. High energy radiation
  4. Peroxides

Question’s Answer: Lewis acid

Which compounds acts as anionic initiator?

  1. Lewis acid
  2. Peroxides
  3. High energy radiation
  4. Lewis bases

Question’s Answer: Lewis bases

The polymers which do not soften by heat and pressure are called ______ .

  1. Copolymers
  2. Thermoplastics
  3. Thermosets
  4. None of A, B, and C

Question’s Answer: Thermosets

Stereo chemical configuration of a vinyl type polymer may be

  1. Syndiotactic
  2. Isotactic
  3. Atactic
  4. All of A, B, and C

Question’s Answer: All of A, B, and C

  1. High density polyethylene (HDP) can be produced under normal conditions temperature and pressure using
  2. Pt
  3. Zeigler-Natta catalyst
  4. V
  5. Ni

Question’s Answer: Zeigler-Natta catalyst

Urea-formaldehyde resin belong to class of polymers called ______ .

  1. Fibers
  2. Plasticizer
  3. Thermoplastics
  4. Thermosetts

Question’s Answer: Thermosetts

Polyesters belong to class of polymers called ______ .

  1. Fibers
  2. Thermosetts
  3. Thermoplastics
  4. Plasticizer

Question’s Answer: Fibers

PVC belongs to class of polymers called ______ .

  1. Fibers
  2. Thermosetts
  3. Plasticizer
  4. Thermoplastics

Question’s Answer: Thermoplastics

A high polymer is one in which the number of repeating units is in excess of about

  1. 10
  2. 1000
  3. 100
  4. None of A, B, and C

Question’s Answer: 1000

The number of repeat units in polymer backbone is called ______ .

  1. Degree of polymerization
  2. Degree of ionization
  3. Degree of dissociation
  4. 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 ______ .

  1. Copolymers
  2. Thermoplastics
  3. Thermosets
  4. None of A, B, and C

Question’s Answer: Thermoplastics

Soft drinks and baby feeding bottles are generally made up

  1. Polyester
  2. Polystyrene
  3. Polyamide
  4. Polyurethane

Question’s Answer: Polystyrene

  1. Which polymers is/are chlorinated?
  2. Orlon
  3. Dacron
  4. Neoprene
  5. None of these

Question’s Answer: Neoprene

SAN is a polymer of

  1. Acrylonitrile
  2. Styrene
  3. Both A and B
  4. Vinyl chloride

Question’s Answer: Both A and B

Bakelite is an example of

  1. Thermosetting polymer
  2. Fiber
  3. Thermoplastic
  4. Elastomer

Question’s Answer: Thermosetting polymer

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