CUET Chemistry MCQs Unit XV Polymers

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 : 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 of the following is not linear polymer ?

(a) Bakelite 

(b) Polyester

(c) Cellulose

(d) High density polyethene

Answer : A 

Question : A thermoplastic among the following is

(a) bakelite 

(b) polystyrene

(c) terylene

(d) urea-formaldehyde resin

Answer : B 

Question : Rayon is :

(a) synthetic plastic

(b) natural rubber

(c) natural silk

(d) artificial silk

Answer : D

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

Question : In addition polymer monomer used is

(a) unsaturated compounds

(b) saturated compounds

(c) bifunctional saturated compounds

(d) trifunctional saturated compounds

Answer : A 

Question : Which is an example of thermosetting polymer?

(a) Polythene

(b) PVC

(c) Neoprene

(d) Bakelite

Answer : C

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

(a) elastomers

(b) fibres

(c) thermoplastics

(d) thermosetting polymers

Answer : D

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

(a) Polyesters

(b) Polyamide

(c) Polythene

(d) Both (a) and (b)

Answer : D

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

(a) Acrylic

(b) Terylene

(c) Nylon

(d) All of these

Answer : A 

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

Answer : B 

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.

Answer : D

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

Answer : B 

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

(a) Melamine

(b) Glyptal

(c) Dacron

(d) Neoprene

Answer : D

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

(a) DNA

(b) Cellulose

(c) ATP

(d) Urease

Answer : C

Question : Protein is a polymer of:

(a) glucose      

(b) terephthalic acid

(c) amino acids

(d) None of these

Answer : C

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

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

(a) Proteins

(b) Cellulose

(c) Rubber

(d) All of these

Answer : D

Question : Natural silk is a

(a) polyester

(b) polyamide

(c) polyacid

(d) polysaccharide

Answer : B 

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 : In elastomer, intermolecular forces are

(a) strong

(b) weak

(c) nil

(d) None of these

Answer : B 

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

Answer : D

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.

Answer : D

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

(a) PVC

(b) Bakelite

(c) Polyethylene

(d) Rubber

Answer : B 

Question : The monomer of teflon is

(a) CHF == CH₂

(b) CF₂ == CF₂

(c) CHC₁ == CHCl

(d) CHF == CHC₁

Answer : B 

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

Answer : B 

Question : Interparticle forces present in nylon-66 are

(a) van der waal’s

(b) hydrogen bonding

(c) dipole-dipole interactions

(d) None of these

Answer : B 

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 : Rayon is :

(a) synthetic plastic

(b) natural rubber

(c) natural silk       

(d) artificial silk

Answer : D

Question : Polymers are:

(a) micromolecules      

(b) macromolecules

(c) sub-micromolecules

(d) None of the above

Answer : B 

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

(a) DNA

(b) Cellulose

(c) ATP

(d) Urease

Answer : C

Question : Polymers are:

(a) micromolecules

(b) macromolecules

(c) sub-micromolecules

(d) None of the above

Answer : B 

Question : Nylon 66 belongs to the class of

(a) Addition polymer

(b) Condensation polymer

(c) Addition homopolymer

(d) Condensation heteropolymer

Answer : D

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

Answer : B 

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

Answer : C

Question : Melamine plastic crockery is a copolymer of:

(a) HCHO and melamine

(b) HCHO and ethylene

(c) melamine and ethylene

(d) None of these

Answer : A 

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

(a) Terylene

(b) Polyethylene

(c) Polypropylene

(d) Nylon - 6

Answer : D

Question : Among the following a natural polymer is

(a) cellulose

(b) PVC

(c) teflon   

(d) polyethylene

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 : Which is an example of thermosetting polymer?

(a) Polythene

(b) PVC

(c) Neoprene

(d) Bakelite

Answer : C

Question : Protein is a polymer of:

(a) glucose

(b) terephthalic acid

(c) amino acids

(d) None of these

Answer : C

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

(a) Silk

(b) Dacron

(c) Nylon-66

(d) All of these

Answer : D

Question : Orlon is a polymer of

(a) styrene

(b) tetrafluoroethylene

(c) vinyl chloride

(d) acrylonitrile

Answer : D

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

(a) Terylene

(b) Bakelite

(c) Melamine

(d) Nylon-66

Answer : A 

Question : Which of the following is not a biopolymer ?

(a) Proteins

(b) Rubber

(c) Cellulose

(d) RNA

Answer : B 

Question : In addition polymer monomer used is

(a) unsaturated compounds

(b) saturated compounds

(c) bifunctional saturated compounds

(d) trifunctional saturated compounds

Answer : A 

Question : Among the following a natural polymer is

(a) cellulose

(b) PVC

(c) teflon

(d) polyethylene

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 : 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

Answer : D

Question : Low density polythene is prepared by

(a) Free radical polymerisation

(b) Cationic polymerisation

(c) Anionic polymerisation

(d) Ziegler-Natta polymerisation

Answer : A 

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

Answer : D

Question : Natural silk is a

(a) polyester

(b) polyamide

(c) polyacid 

(d) polysaccharide

Answer : B 

Question : Nylon 66 belongs to the class of

(a) Addition polymer

(b) Condensation polymer

(c) Addition homopolymer

(d) Condensation heteropolymer

Answer : D

Question : Which of the following is not linear polymer ?

(a) Bakelite

(b) Polyester

(c) Cellulose

(d) High density polyethene

Answer : A 

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)

Answer : B 

Question : Caprolactam polymerises to give

(a) terylene

(b) teflon

(c) glyptal

(d) nylon-6

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 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 is thermoplastic ?

(a) Bakelite

(b) Polyethylene

(c) Terylene

(d) All of these

Answer : B 

Question : Bakelite is obtained from phenol by reacting with

(a) (CH₂OH)₂

(b) CH₃CHO

(c) CH₃ COCH₃

(d) HCHO

Answer : D

Question : Which of the following is not a biopolymer ?

(a) Proteins

(b) Rubber

(c) Cellulose

(d) RNA

Answer : B 

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

(a) Vinylchloride

(b) Butadiene

(c) Styrene

(d) All of the above undergoes addition polymerizations

Answer : D

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

Answer : B 

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 : 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

Answer : B