CBSE Questions for Class 12 Engineering Chemistry Polymers Quiz 1 - MCQExams.com

Teflon is an example of polymer which is a/an
  • polyamide
  • addition Ploymer
  • polyster
  • formaldehyderesin
Polyester is made up of the repeating units of a chemical called:
  • ester
  • ether
  • cotton
  • ethene
Plexiglass is a polymer of ____.
  • acrylic acid
  • methylacrylate
  • methyl methacrylate
  • methyl propacrylate
$$C{F}_{2} = C{F}_{2}$$ is a monomer of:
  • Teflon
  • Orlon
  • Polythene
  • Nylon-6
The following are synthetic polymers except :
  • Teflon
  • Terylene
  • Nylon
  • Proteins
Most balloons, tyres and footballs are made-of rubber. This is because rubber is:
  • naturally available
  • cheap
  • an electrical insulator
  • soft and flexible

Ropes of nylon and polyester are commonly used in cranes and elevators.
  • True
  • False
Synthetic fibres are synthesized from raw material called:
  • polyester
  • polymers
  • polythene
  • polycot
As plastics and synthetic fibers consist of repeating monomer units, they are known as ______ .
  • polyesters
  • polymers
  • co-polymers
  • None of the above
Which is used in making of thermocol ?
  • Polypropylene
  • Polyethylene
  • Polystyrene
  • High density polyethylene
Which of the following is not a polymer?
  • Ice
  • Starch
  • Protein
  • Cellulose
Vulcanization of rubber helps to make rubber hard and resistant to hot and cold conditions.
  • True
  • False
Polyacrylamide gel is prepared by mixing acrylamide and ______________ at fixed proportions.
  • glycol
  • bisacrylamide
  • hydrazine
  • none of the above
Bakelite is a product of the reaction between:
  • Formaldehyde and $$NaOH$$
  • Aniline and Urea
  • Phenol and Methanal
  • Phenol and Chloroform
Which of the following is a way to dispose non-biodegradable materials?
  • Recycling
  • Land fill
  • Incineration
  • All of above
Which of the following is correct about cellulose?
  • Natural polymer
  • Synthetic polymer
  • Semi synthetic polymer
  • Natural monomer
Bakelite is formed by:
  • polymerization of phenol and formaldehyde
  • polymerization of alcohol and acetaldehyde
  • condensation of phenol and formaldehyde
  • condensation of phenol and acetaldehyde
What are polymers?
  • Macromolecules composed of many repeated sub units
  • Monomers bonded together in a long chain
  • Both A and B
  • None of the above
Which among the following is a polymer of cellulose?
  • Nylon
  • Polyester
  • Cotton
  • Polythene
Which compound is condensation polymer?
  • Nylon
  • PVC
  • Natural
  • Teflon
What are blended fibres?
  • Mixture of two natural fibres
  • Mixture of two synthetic fibre
  • Mixture of natural and synthetic fibres
  • All of above
 Which of the following kind of polymers are known for their high crystallinity?
  • syndiotactic
  • atactic
  • isotactic
  • none of the mentioned
A polymer is formed by :
  • Hydration
  • Methylation
  • Hydrolysis
  • Dehydration synthesis
Emulsions of polyvinyl acetate are used in ?
  • Polishes
  • Firecrackers
  • Crayons
  • Latex paints
The monomer of the polystyrene polymer is:
  • $${CH}_{3}CH=CH{CH}_{3}$$
  • $${CH}_{3}CH={CH}_{2}$$
  • $${({CH}_{3})}_{2}=C{({CH}_{3})}_{2}$$
  • None of the above
Which of the following monomers are unsuitable for condensation polymerization?
  • hydroxy acids
  • butane-dioic acid and glycol
  • diamines and dicarboxylic acids
  • propanoic acid and ethanol
Which of the following polymers of glucose is stored by animals?
  • Cellulose
  • Amylose
  • Amylopectin
  • Glycogen
Of the following which one is classified as polyester polymer?
  • Terylene
  • Backelite
  • Melamine
  • Nylon-66
What is the monomer unit of natural rubber?
  • Isoprene
  • Ethene
  • Neoprene
  • Tetrafluro ethene
Plastics are:
  • salts
  • acids
  • polymers
  • solvents
Which among the following is a chain growth polymer?
  • Nylon
  • Bakelite
  • Terylene
  • Teflon
Which of the following contains isoprene units?
  • Natural rubber
  • Nylon - $$6,\:6$$
  • Polyethylene
  • Dacron
Trans-form of rubber is called ___.
  • Isoprene
  • Neoprene
  • Gutta percha
  • Glyptal
The monomer of natural rubber is:
  • butadiene
  • chloroprene
  • isoprene
  • styrene
Dicarboxylic acids react with diols to form which type of co-polymer?
  • Random
  • Alternating
  • Block
  • Graft
Polymerisation in which two or more chemically different monomers take part is called:
  • addition polymerisation
  • copolymerisation
  • chain polymerisation
  • homopolymerisation
Which of the following is an example of condensation polymers?
  • Polythene
  • Orlon
  • Terylene
  • None of these
Terylene is:
  • an addition polymer with a benzene ring in every repeating unit.
  • a condensation polymer with a benzene ring in every repeating unit.
  • an addition polymer with two carbon atoms in every repeating unit.
  • a condensation polymer with two nitrogen atmos in every repeating unit.
Which of the following is an elastomer?
  • Vulcanized rubber
  • Dacron
  • Polystyrene
  • Melamine
Dacron is an example of a/an:
  • elastomer
  • fibre
  • thermoplastic
  • thermosetting polymer
The formula for calculating $$\bar{M_{w}}$$ of a polymer is:
  • $$\frac{\sum NiMi}{\sum Ni}$$
  • $$\frac{\sum NiMi}{\sum Mi}$$
  • $$\frac{\sum NiMi^{2}}{\sum Mi}$$
  • $$\frac{\sum NiMi^{2}}{\sum NiMi}$$
The empirical formula of natural rubber is:
  • $$(C_{3}H_{5})_{n}$$
  • $$(C_{5}H_{8})_{n}$$
  • $$(C_{5}H_{3})_{n}$$
  • $$(C_{8}H_{5})_{n}$$
For natural polymers, PDI is generally ___
  • $$0$$
  • $$1$$
  • $$100$$
  • $$1000$$
The tensile strength, elasticity and resistance to abrasion can be increased by a process called:
  • Galvanisation
  • Vulcanization
  • Bessemerisation
  • Sulphonation
The formula for calculating $$\bar{M_{n}}$$ of a polymer is:
  • $$\frac{\sum NiMi}{\sum Ni}$$
  • $$\frac{\sum NiMi}{\sum Mi}$$
  • $$\frac{\sum NiMi^{2}}{\sum Mi}$$
  • $$\frac{\sum NiMi^{2}}{\sum NiMi}$$
The process involving heating of rubber with sulphur is called ___
  • Galvanisation
  • Vulcanization
  • Bessemerisation
  • Sulphonation
The synthetic polymer which resembles natural rubber is:
  • Neoprene
  • Buna-S
  • Nylon
  • Rayon
The number average molecular mass and mass average molecular mass of a polymer are $$30,000$$ and $$40,000$$ respectively. The PDI of the polymer is
  • $$< 1$$
  • $$>1$$
  • $$1$$
  • $$0$$
a.  $$Caprolactum\: \xrightarrow {hydrolysis} A$$

b.  $$A + Glycine    \rightarrow B (Polymer) $$

Here, $$B$$ is :
I. Condensation Polymer
II. Addition Polymer
III. Polyamide Polymer
IV. Polyester Polymer
V. Biodegradable Polymer
  • I, III, V are corect.
  • II, IV are correct.
  • II, III, IV are correct.
  • II, IV, V are correct.
A. Natural rubber is an elastomer.
R. The inter-molecular forces of attraction between the polymer chains are weak vander Waals forces.
  • Both A and R are correct and R is the correct explanation of the A
  • Both A and R are correct but R is not the correct explanation of the A
  • A is correct but R is in correct
  • A is incorrect but R is correct
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