CBSE Class 12 Chemistry Polymers MCQs Set A

Question : Which of the following is not linear polymer ?

(a) Bakelite  (b) Polyester
(c) Cellulose (d) High density polyethene

Answer : A

Question : A polymer is formed when simple chemical units

(a) combine to form long chains
(b) combine to form helical chains
(c) break up
(d) become round

Answer : A 

Question : Polymer formation from monomers starts by

(a) condensation reaction between monomers
(b) coordinate reaction between monomers
(c) conversion of monomer to monomer ions by protons
(d) hydrolysis of monomers.

Answer : A 

Question : On the basis of mode of formation, polymers can be classified?

(a) as addition polymers only
(b) as condensation polymers only
(c) as copolymers
(d) both as addition and condensation polymers

Answer : D 

Question : In addition polymer monomer used is

(a) unsaturated compounds
(b) saturated compounds
(c) bifunctional saturated compounds
(d) trifunctional saturated compounds

Answer : A 

Question : Nylon 66 belongs to the class of

(a) Addition polymer
(b) Condensation polymer
(c) Addition homopolymer
(d) Condensation heteropolymer

Answer : D 

Question : A polymer made from a polymerization reaction that produces small molecules (such as water) as well as the polymer is classified as a/an ..... polymer.

(a) addition        (b) natural
(c) condensation (d) elimination

Answer : C 

Question : In elastomer, intermolecular forces are

(a) strong (b) weak
(c) nil      (d) None of these

Answer : B 

Question : A thermoplastic among the following is

(a) bakelite  (b) polystyrene
(c) terylene (d) urea-formaldehyde resin

Answer : B 

Question : Which is an example of thermosetting polymer?

(a) Polythene (b) PVC
(c) Neoprene (d) Bakelite

Answer : C 

Question : Which is not true about polymers?

(a) Polymers do not carry any charge

(b) Polymers have high viscosity

(c) Polymers scatter light

(d) Polymers have low molecular weight

Question : Which of the following belongs to the class of natural polymers?

(a) Proteins (b) Cellulose

(c) Rubber (d) All of these

Question : Which of the following natural products is not a polymer?

(a) DNA (b) Cellulose

(c) ATP (d) Urease

Question : Among the following a natural polymer is

(a) cellulose (b) PVC

(c) teflon (d) polyethylene

Question : Which of the following is not a biopolymer ?

(a) Proteins (b) Rubber

(c) Cellulose (d) RNA

Question : Rayon is :

(a) synthetic plastic (b) natural rubber

(c) natural silk (d) artificial silk

Question : Protein is a polymer of:

(a) glucose (b) terephthalic acid

(c) amino acids (d) None of these

Question : Natural silk is a

(a) polyester (b) polyamide

(c) polyacid (d) polysaccharide

Question : Polymers are:

(a) micromolecules (b) macromolecules

(c) sub-micromolecules (d) None of the above

Question : Which of the following is/are a semisynthetic polymers?

(a) Cellulose acetate (b) Polyvinyl chloride

(c) Cellulose nitrate (d) Both (a) and (c)

Question : Which of the following is not linear polymer ?

(a) Bakelite (b) Polyester

(c) Cellulose (d) High density polyethene

Question : A polymer is formed when simple chemical units

(a) combine to form long chains

(b) combine to form helical chains

(c) break up

(d) become round

Question : Polymer formation from monomers starts by 

(a) condensation reaction between monomers

(b) coordinate reaction between monomers

(c) conversion of monomer to monomer ions by protons

(d) hydrolysis of monomers.

Question : On the basis of mode of formation, polymers can be classified?

(a) as addition polymers only

(b) as condensation polymers only

(c) as copolymers

(d) both as addition and condensation polymers

Question : In addition polymer monomer used is

(a) unsaturated compounds

(b) saturated compounds

(c) bifunctional saturated compounds

(d) trifunctional saturated compounds

Question : Nylon 66 belongs to the class of

(a) Addition polymer

(b) Condensation polymer

(c) Addition homopolymer

(d) Condensation heteropolymer

Question : A polymer made from a polymerization reaction that produces small molecules (such as water) as well as the polymer is classified as a/an ..... polymer.

(a) addition (b) natural

(c) condensation (d) elimination

Question : In elastomer, intermolecular forces are

(a) strong (b) weak

(c) nil (d) None of these

Question : A thermoplastic among the following is

(a) bakelite (b) polystyrene

(c) terylene (d) urea-formaldehyde resin

Question : Which is an example of thermosetting polymer?

(a) Polythene (b) PVC

(c) Neoprene (d) Bakelite

Question : Which of the following is thermoplastic ?

(a) Bakelite (b) Polyethylene

(c) Terylene (d) All of these

Question : Thermosets are:

(a) cross-linked polymers

(b) don’t melt or soften on heating

(c) cross-linking is usually developed at the time of moulding where they harden reversibly

(d) all of the above

Question : Which is/are true for elastomers?

(a) These are synthetic polymers possessing elasticity

(b) These possess very weak intramolecular forces or attractions between polymer chains

(c) Vulcanised rubber is an example of elastomer

(d) All of the above

Question : Among the following polymers the strongest molecular forces are present in

(a) elastomers (b) fibres

(c) thermoplastics (d) thermosetting polymers

Question : Three dimensional molecular structure with cross links are formed in the case of a

(a) thermoplastic (b) thermosetting plastic

(c) Both (a) and (b) (d) None of the above

Question : Which of the following polymer is an example of fibre ?

(a) Silk (b) Dacron

(c) Nylon-66 (d) All of these

Question : Which of the following statements is not correct for fibres?

(a) Fibres possess high tensile strength and high modulus.

(b) Fibres impart crystalline nature.

(c) Characteristic features of fibres are due to strong intermolecular forces like hydrogen bonding.

(d) All are correct.

Question : Which of the following is/are examples of fibres?

(a) Polyesters (b) Polyamide

(c) Polythene (d) Both (a) and (b)

Question : Which of the following can be repeatedly soften on heating?

(i) Polystyrene (ii) Melamine

(iii) Polyesters (iv) Polyethylene

(v) Neoprene

(a) (i) and (iii) (b) (i) and (iv)

(c) (iii), (iv) and (v) (d) (ii) and (iv)

Question : Which of the following does not undergo addition polymerization?

(a) Vinylchloride

(b) Butadiene

(c) Styrene

(d) All of the above undergoes addition polymerizations

Question : Which of the following is a cross linked polymer?

(a) PVC (b) Bakelite

(c) Polyethylene (d) Rubber

Question : Fibres that have good resistance to stains, chemicals,insects and fungi is

(a) Acrylic (b) Terylene

(c) Nylon (d) All of these

Question : Which of the following statements is not true about low density polythene?

(a) Tough

(b) Hard

(c) Poor conductor of electricity

(d) Highly branched structure

Question : Low density polythene is prepared by

(a) Free radical polymerisation

(b) Cationic polymerisation

(c) Anionic polymerisation

(d) Ziegler-Natta polymerisation

Question : The monomer of teflon is

(a) CHF == CH₂ (b) CF₂ == CF₂

(c) CHC₁ == CHCl (d) CHF == CHC₁

Question : The monomer(s) used in the preparation of Orlon, a substitute for wool is/are

(a) caprolactam

(b) tetrafluoroethene

(c) styrene and 1, 3-butadiene

(d) acrylonitrile

Question : Orlon is a polymer of

(a) styrene (b) tetrafluoroethylene

(c) vinyl chloride (d) acrylonitrile

Question : Which of the following polymer is used for manufacturing of buckets, dustbins, pipes etc ?

(a) Low density polythene

(b) High density polythene

(c) Teflon

(d) Polyacrylonitrile

Question : Which of the following catalyst is used in preparation of high density polythene ?

(a) Peroxide catalyst

(b) Ziegler - Natta catalyst

(c) Wilkinson’s catalyst

(d) Pd - catalyst

Question : Which of the following statements is false?

(a) Artificial silk is derived from cellulose.

(b) Nylon-66 is an example of elastomer.

(c) The repeat unit in natural rubber is isoprene.

(d) Both starch and cellulose are polymers of glucose.

Question : Melamine plastic crockery is a copolymer of:

(a) HCHO and melamine (b) HCHO and ethylene

(c) melamine and ethylene (d) None of these

Question : Caprolactam polymerises to give

(a) terylene (b) teflon

(c) glyptal (d) nylon-6

Question : Nylons, polysters and cotton, all posses strength due to:

(a) intermolecule H-bonding

(b) van der Waals’ attraction

(c) dipole-dipole interaction

(d) None of the above

Question : Nylon 66 is a polyamide obtained by the reaction of

(a) COOH(CH₂)4 COOH + NH₂C₆H₄NH₂

(b) COOH(CH₂)₄ COOH + NH₂ (CH₂)6 NH₂

(c) COOH (CH₂)₆ COOH + NH₂ (CH₂)₄ NH₂

(d) COOHC₆H₄ COOH–(p) + NH₂ (CH₂)₆ NH₂

Question : Interparticle forces present in nylon-66 are

(a) van der waal’s

(b) hydrogen bonding

(c) dipole-dipole interactions

(d) None of these

Question : The plastic household crockery is prepared by using

(a) melamine and tetrafluoroethane

(b) malonic acid and hexamethyleneamine

(c) melamine and vinyl acetate

(d) melamine and formaldehyde

Question : Which of the following is currently used as a tyre cord ?

(a) Terylene (b) Polyethylene

(c) Polypropylene (d) Nylon - 6

Question : Of the following which one is classified as polyester polymer ?

(a) Terylene (b) Bakelite

(c) Melamine (d) Nylon-66

Question : Which one of the following is not a condensation polymer 

(a) Melamine (b) Glyptal

(c) Dacron (d) Neoprene

Question : Bakelite is obtained from phenol by reacting with

(a) (CH₂OH)₂ (b) CH₃CHO

(c) CH₃ COCH₃ (d) HCHO

Question : Which is not true about polymers?

(a) Polymers do not carry any charge
(b) Polymers have high viscosity
(c) Polymers scatter light
(d) Polymers have low molecular weight

Answer : D

Question : Which of the following belongs to the class of natural polymers?

(a) Proteins (b) Cellulose
(c) Rubber  (d) All of these

Answer : D

Question : Which of the following natural products is not a polymer?

(a) DNA (b) Cellulose
(c) ATP (d) Urease

Answer : C

Question : Among the following a natural polymer is

(a) cellulose (b) PVC
(c) teflon    (d) polyethylene

Answer : A

Question : Which of the following is not a biopolymer ?

(a) Proteins (b) Rubber
(c) Cellulose (d) RNA

Answer : B

Question : Rayon is :

(a) synthetic plastic (b) natural rubber
(c) natural silk        (d) artificial silk

Answer : D

Question : Protein is a polymer of:

(a) glucose       (b) terephthalic acid
(c) amino acids (d) None of these

Answer : C

Question : Natural silk is a

(a) polyester (b) polyamide
(c) polyacid  (d) polysaccharide

Answer : B

Question : Polymers are:

(a) micromolecules       (b) macromolecules
(c) sub-micromolecules (d) None of the above

Answer : B

Question : Which of the following is/are a semisynthetic polymers?

(a) Cellulose acetate (b) Polyvinyl chloride
(c) Cellulose nitrate  (d) Both (a) and (c)

Answer : D