Synthetic Fibres And Plastics Questions

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Synthetic Fibres And Plastics Questions

List of synthetic fibres and plastics Questions

Question NoQuestionsClass
1A material which is not easily decomposed by natural processes is termed as:
A. biodegradable material
B. non-biodegradable material
c. recycled material
D. natural material
8
2Raw materials for most of the synthetic fabrics are obtained from:
A. water
B. air
c. petroleum
D. sky
8
3What are natural fibres? Explain with examples.8
410. Which of the following are advantages of synthetic fibres:
(a) They are tough and durable.
(b) They are water resistant and easy to dry.
(c) They do not wrinkle.
(d) All of these.
8
512. How many types of arrangement of units in plastics?
Name them.
8
6Natural fibres can be defined as:
A. substances produced by plants and animals
B. man-made fibres produced industrially
C . synthetic fibres
D. none of the above
8
7Thermoplastics are:
A. linear polymers.
B. soften or melt on heating
C. molten polymer can be moulded in desired shape.
D. All of these
8
8Polyester consists of :
A. repeating unit of ether
B. monomer of ester
C. repeating units of ester
D. monomer of ether
8
9Describe an activity to show that thermoplastic is a poor conductor of
electricity.
8
10Nylon is obtained by:
A. treating wood pulp
B. solidifying water
C. mixing coal, air and water
D. mixing chemicals
8
11Which of the following is a natural fabric?
A. Polythene
B. PVC
c. Nylon
D. Wool
8
129.
Write the uses of plastics in health care industry.
8
13Which of the following do not contain polyester fabric?
A. Terrywool
B. Terrycot
c. Terylene
D. Orlon
8
14Which of the following is monomer of natural rubber?
A. Isoprene
B. Chloroprene
c. caprolactum
D. styrene
8
15What is recycling?
A. Burning of material
B. Break down the material by natural process
C. Recovering and reprocessing the material into useful products
D. Burying the products in land
8
16is called artificial silk.8
178.
The first fully synthetic fibre was
8
18What do you observe when you are visiting a nearby tailoring shop?8
19are
obtained from cotton plant and sheep
respectively.
A. Wool and cotton
B. cotton and wool
c. silk and wool
D. Wool and silk
8
206.
Assertion : Nylon is used for making rock climbing ropes,
parachutes, car seat belts and fishing nets.
Reason: Nylon is a very strong fibre.
8
2112.
Polysters are purely synthetic fibres.
8
22Plastics are generally good conductors of electricity.
A . True
B. False
8
233.
What is the application of nylon in medical field ?
8
241.
Rayon is a semi-synthetic fibre
8
253.
Base raw material for rayon is …
8
26The world’s first fully synthetic plastic
was:
A. Polystyrene
B. Nylon
c. Bakelite
D. Teflon
8
27Which synthetic fibre is used in making ropes for rock climbing and parachutes
?
A . Nylon
B. Rayon
c. Polycot
D. Jute
8
2810. Name a man-made fibre which was made without using
natural raw materials.
Nome torticles made by Avon
8
29Which of the following has an ester linkage?
A. Nylon – 6,6
B. Dacron
c. PVC
D. Bakelite
8
30Which of the following are synthetic
fibres?
This question has multiple correct options
( A ). Wool
B. cotton
c. Acrylic
D. Polystyrene
8
31Give examples which indicate that nylon fibres are very
strong.
8
32Fibres can be classified as natura
fibres and synthetic fibres.
A. True
B. False
8
33Which plastic is called a fire proof
plastic?
A. Melamine
B. Bakelite
c. Teflon
D. Acrylic
8
34Name the plastic used for making non-
stick pans:
A. PVC
B. Teflon
c. Bakelite
D. Melamine
8
35surong
Explain why plastic containers are favoured for storing food
5.
8
362.
Mark (V) the correct answer.
Rayon is different from synthetic fibres because
(a) it has a silk like appearance
(b) it is obtained from wood pulp
(c) its fibres can also be woven like those of natural fibres
8
37Rayon has properties similar to:
A. wool
B. jute
( c . ) silk
D. cotton
8
38Which of the following does not yield wool?
A . Camel
B. Sheep
c. Deer
D. Goat
8
39Cotton cloth requires to
decompose.
A. more than 15 years
B. 10-15 years
c. 100 years
D. 2-5 months
8
40Which of the following is thermoresistant polymer?
A. Orlon
B. Polythene
c. Teflon
D. Bakelite
8
41Which of the following is considered the first thermoplastic?
A. PVC
B. Polystyrene
c. Melamine
D. Celluloid
8
42Give examples which indicate that nylon fibres are very strong.8
43Which of the following best describes
biodegradation?
A. A minor change in an organic molecule
B. Fragmentation of a complex organic molecule
C. Complete transformation of the organic molecule to mineral forms
D. All of the above
E. None of the above
8
44Plastic can be used for:
A. polythene bags
B. food packaging
C . electrical appliances
D. All of the above
8
459.
A plastic used for making crockery is ………..
8
469.
Most plastics are biodegradable
8
47Why are plastics difficult to biodegrade?
A. They are not environment friendly
B. Burning process is slow
c. They release lot of poisonous fumes
D. All of above
8
48provides good heat and sound insulation.
A. Propylene
B. Styrofoam
c. Polythene
D. Acrylic
8
49We come to a conclusion, that plastics are bad conductors of electricity from the following. This question has multiple correct options
A. Refrigerators and freezers have a plastic foam core
B. Electrical wires have a plastic covering
c. cooking pans have plastic handles
D. we use to prepare parachutes
8
50Question 11. Which factor imparts crystalline nature to a polymer like
nylon?
8
51Jute fibre is obtained from the
of jute plant.
A . leaves
B. seeds
c. roots
D. stem
8
52Which of the following is a property of
plastic?
A. Flame resistant
B. Non-corrosive
c. Mouldable
D. All of the above
8
53Which of the following is known as artificial silk?
A. Rayon
B. Nylon
c. Polyester
D. Acrylic
8
54is used for making carpets and blankets.8
55Assertion
Plastics are non-biodegradable.
Reason
As they cannot be decomposed by micro-organisms.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
8
56Should the handle and bristles of a
tooth brush be made of the same
material? Explain your answer.
8
57Preshrink cotton is called:
A. natural cotton
B. terycotton
c. sanforized cotton
D. none of the above
8
58$
1.
Plastic is used for making a large variety of articles of dat
use and these articles are very attractive. But it is advised
avoid the use of plastic as far as possible. Why?
8
59These clothes are used best in summer
A. wool
B. Silk
c. cotton
D. Nylon
8
60Assertion
Plastics are non-biodegradable.
Reason
As they cannot be decomposed by micro-organisms.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion.
B. Both Assertion and Reason are correct, but Reason is not the correct explanation for Assertion.
C. Assertion is correct, but Reason is incorrect.
D. Assertion is incorrect, but Reasn is correct
8
61A non-biodegradable waste is:
A. Metallic tins
B. Plastic
c. Polythene
D. All the above
8
629.
What is the common name of rayon ?
8
63Assertion
Plastic is non-biodegradable.
Reason
It takes many years to decompose.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
8
64Plastics are mainly used by everyone because:
This question has multiple correct options
A. They are cheap
B. Easy to handle
c. Do not break
D. Light weight
8
657.
Why should we not wear synthetic clothes while working
in kitchen ?
8
66Name some modern fabrics formed by
unstitched piece of fabric.
8
67The material which is commonly used for making kitchen containers is :
A. PVC
B. Acrylicc
c. Teflon
D. PET
8
68These are generally the bad conductors of heat :
A. Graphite
B. Copper
c. Iron
D. Plastics
8
69Nylon has high elasticity and tensile strength.
A . True
B. False
8
70Fill in the blank.
is a natural fibre,
with continuous filaments which can
stretch upto ( 1 mathrm{km} )
8
71Which of the following is known as regenerated fibre?
A. Nylon – 66
B. Terylene
c. Nylon – 6
D. Rayon
8
72Ropes made of are used in
cranes and lifts.
A. rayon
B. nylon
c. acrylic
D. spandex
8
73Which of the following is an animal
fiber?
A . silk
B. Avian
c. Alpaca
D. All of the above
8
74A person has to make electric switches
and plugs. Which material is recommended ?
A. Teflon
B. Bakelite
c. Rayon
D. PVC
8
7513. Why plastics are not ecofriendly?8
76Distinguish between Thermoplastics and thermosetting plastics.8
771.
What is plastic? Name different types of plastics.
8
788.
A synthetic fibre obtained from renewable resources is
(a) Nylon
(b) Polyester
(c) Rayon
(d) Acrylic
8
7913. Rayons are derived from cellulose.8
80Frying pan handles are made up of
A. thermoplastic
B. thermosetting Plastic
c. rayon
D. PVC
8
81In India,jute is cultivated during which
season?
A. Rainy
B. Summer
c. winter
D. Throughout the year.
8
82Why is plastic a poor conductor?
A. They are non-reactive
B. They can melt
C. They have high number of free electrons
D. They do not have free electrons
8
83Statement: The articles made of
thermoplastics can be recycled whereas the articles made of thermosetting plastics cannot be recycled.

State whether the given statement is true or false.
A. True
B. False

8
84Which of the following is used in automobile battery casings?
A. HDPE
B. PP
c. PVC
D. Polyester
8
85Match the following with the correct
answers.
(a) Scouring
(i) Yields silk
fibers
(b) Mulberry leaves
(ii) Cleaning sheared skin
(c) Sheep
(iii) Food of silk
worm.
(d) Cocoon
(iv) Wool yielding animal.
B . a – ->i, b- -> ii, c- -> iii, d- > iv
( c cdot a->-i v, b->>i i i, c-rightarrow>i i, d->i )
D. a->- ii, b- -> i, c- -> ii, d- – > iv
8
86Which of the following is used for making parachutes and stockings?
A. cotton
B. Nylon
c. wool
D. Bakelite
8
87Artificial (man-made) wool is known by
the name:
A. rayon
B. acrylicc
c. polycot
D. none of these
8
88Disposable plastic plates should not be used because:
A. They are made of materials with light weight
B. They are made of toxic materials
c. They are made of biodegradable materials
D. They are made of non-biodegradable materials
8
895.
Which of of the following comes under category of plastic?
(a) pain killer strips (b) cycle tyre
(c) broken toys (d) old T-shirts

1 c
u
.
.
8
90Which material is used for making:
(i) Saucepan handles
(ii) Electric plugs/switches/plugboards
A. Bakelite
B. PVC
c. Polythene
D. Polyester
8
91&
Plastics do not corrode or rust.
8
92When you visit a hill station, which of the following you should use for shopping?
A. bags made up of cotton
B. bags made up of polyethene
c. bags made up of nylon
D. none of the above
8
93Polymers can be classified based on
molecular forces.
(a) Classify the following polymers into elastomers and fibres:

Rubber, Nylon 6,6, Buna-S, Terylene
(b) What do you mean by thermosetting polymers? Give one example.

8
94A lady went to the market in buy a blanket. The shopkeeper
showed her blankets made of acrylic fibres as well as made
of wool. She preferred to buy an acrylic blanket. Can you
guess why ?
8
952.
Why is nylon called a polyamide?
8
967.
Give an important use of nylon.
8
97vut
9.
The major raw materials for rayon is obtained from
(a) wood.
(b) coal.
(c) petroleum (d) both coal and petroleum.
8
98Fibre obtained by chemical treatment of wood pulp is called:
A. natural Silk
B. rayon
c. nylon
D. polyster
8
99Which of the following is/are common properties of
plastics?
(a) Non-reactive (b) Durable
(c) Light in weight (d) Good conductor of electricity
8
100Nylon is an example of thermoplastic.
A. True
B. False
8
1013.
Assertion : Acrylic fabrics are used in making socks and
shawls.
Reason : Acrylic fabrics are replacement of wool.
8
1022.
Write down the name of any 5 fibres/plastics and also
mention one use of each.
S.No.
Fibres/Plastics
Uses
3
8
103When plastics are burnt toxic
substances are released into the air
causing water pollution.
A. True
B. False
8
1044.
How is rayon prepared?
8
105Write uses of plastic in medical?8
106Why is plastic used in covering of electrical appliances?
A. Good conductors of heat and electricity
B. Durable
c. Poor conductors of heat and electricity
D. None of above
8
107Which type of fiber is flax?
A. Leaf fiber
B. Bast fiber
c. Animal fiber
D. Fruit fiber
8
108Explain why the following are made of thermosetting plastics.
(a) Saucepan handles
(b) Electric plugs/switches/plug boards
8
109Match the terms of Column A correctly
with the phrases given in Column B.
8
110Why is it convenient to store plastic containers than
metals?
8
111Why is the name nylon given to the first fully synthetic
fibre ?
8
11210. Give examples to show that plastics are noncorrosive in
nature.
au
1 1
1
1
11
8
113Which of the following is non biodegradable?
A. Plastic
B. cotton
c. Paper
D. Left over food stuff
8
114Which of the following is a true
statement?
A. Plastic is soluble in water
B. Plastic is not a polymer
c. Rayon is made from cellulose
D. All plastics are fire-resistant
8
115Which plastic is used for replacing materials like glass for making bottles and jars?
A. PET (polyethylene terephthalate)
B. PVC (Polyvinyl chloride)
c. Bakelite
D. Teflon
8
11612.
Plastics
(a) are light
(b) can be spun into fibres to make cloth and carpets.
(c) can be coloured and moulded into any desired shape.
(d) (a), (b) and (c).
8
1173.
Match Column-I with Column-II and select the correct
answer using the code given below the columns.
Column-I
Column-II
(A) Natural fibre
(p) Terylene
(B) Synthetic fibre (q) Rain coats
(C) Semisynthetic fibre (1) Wool
(D) Rubber
(s) Terry wool
(a) A-(r); B-(p); C-(s); D-(q)
(b) A-(9); B-(p); C-(s); D-()
(c) A-(r); B -(p); C-(q); D-(s)
(d) A-(s); B-(p); C-(); D-(9
8
118State whether true or false:
Plastics are insoluble in water
A. True
B. False
8
119Thermosetting plastics can be remoulded on gentle heating.
A. True
B. False
8
1203.
Which of the following synthetic fibre has most wide
applications?
(a) Nylon
(b) Polyester
(C) Acrylic
(d) Polyolefin
8
12114. ‘Manufacturing synthetic fibres is actually helping for
conservation of forests’.
Comment.
8
1221.
Explain why some fibres are called synthetic.
8
123State whether true or false:
Natural fibres are obtained from plants and animals.
A. True
B. False
8
124Why HF acid is stored in plastic bottles?8
125State whether true or false:
Ropes made by rayon are used in cranes and elevators.
A. True
B. False
8
126Name two varieties of cloth materials
which are commonly used.
8
127Polywool is made by blending polyester
and :
A. acrylic
B. rayon
c. cotton
D. wool
8
128Pashmina a type of wool is obtained
from:
A . camel
B. goat
c. sheep
D. artificially
8
129is usually picked by hands and fibres are then separated from the seeds by combing.
A. Jute
B. Moonj
c. cotton
D. None of the above
8
13012. Avoid plastics as far as possible’. Comment on this advice.
13. Match the terms ofcolumn I correctlywith the nel
8
131Synthetic fibres having almost common
property are:
A. nylon and polyster
B. nylon and plastics
c. polyster and plastics
D. all of the above
8
132Electrical wires have a coating of an insulated material. The material
generally used is :
A. sulphur
B. graphite
c. PVC
D. None of the above
8
133Fibres obtained from plants and
animals are called:
A. man made fibres
B. natural fibres
c. organic fibres
D. none of the above
8
134Polyester is a natural fiber.
A. True
B. False
8
135The first man – made polymer is :
A. PVC
B. Teflon
c. Bakelite
D. Nylon
8
136Cooking pans have plastic handles.
A. True
B. False
8
137True or False
Natural fibres are obtained from plants and animals where as synthetic fibres are obtained by chemical processing of petrochemicals.
8
138Moonj is used to make furniture.
A. True
B. False
8
139What are natural fibres ? Give two
examples.
8
140Nylon is obtained from :
A . coal
B. air
c. water
D. all of the above
8
1415.
Despite being very useful it is advised to restrict the used
plastic. Why is it so ? Can you suggest some methode to
limit its consumption ?
8
1427.
The synthetic fibres are also known as …….
. fibres
то
8
143Plastics are eco-friendly.
A. True
B. False
8
144Which of the following material take the Iongest to degenerate?
A. Paper
B. cotton cloth
c. Tin can
D. Plastic bags
8
14520. Polycot is obtained by mixing
a) polyester and cotton
(1) polyester and wool
(c) cotton and wool
(d) None of these
8
146Which of the following statement is
true?
A. A nylon thread is stronger than a steel wire
B. Rayon is a natural fibre made from wood pulp
C. Cotton is not a polymer
D. Fabric made from polyester can get wrinkles easily
8
14712. AVIU puno
13. Match the terms of column I correctly with the phrases given
in column II.
Column-1
Column-II
(i) Polyester
(a) Prepared by using wood pulp
(ii) Teflon
(b) Used for making parachutes and
stockings
(iii) Rayon (c) Used to make non-stick
cookwares
(iv) Nylon
(d) Fabrics do not wrinkle easily
8
148Categorise the materials of the following products into ‘can
be recycled’ and ‘cannot be recycled’.
Telephone instruments, plastic toys, cooker handles, carry
bags, ball point pens, plastic bowls, plastic covering on
electrical wires, plastic chairs, electrical switches.
8
149Polymeric organic materials are called:
A . elastics
B. plastics
c. polythenes
D. None of these
8
150Which of the following material is not used in making plate?
A. steel
B. Glass
c. Plastics
D. Leather
8
151Which of the following statement is true about PVC (polyvinyl chloride) and polythene?
A. They are thermoplastics
B. They are thermosetting plastics
c. They are examples of natural substances
D. They are natural fibres
8
1528.
Name any two commonly used plastics.
8
153Assertion
Plastic is not responsible for utilising a major share of the world’s oil or hydrocarbon resources
Reason
plastics use less than ( 4 % ) of the world’s hydrocarbon resources. Approximately
( 90 % ) is consumed for transportation,
power generation and heating.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
8
154Write uses of melamine plastic.8
155Which out of the following is used for making disposable cups?
A. LDFE
B. PS
( c cdot P P )
D. PVC
8
156An example of natural fibre is :
A . Nylon
B. Rayon
c. Jute
D. Terylene
8
15715. Synthetic fibres are generally hydrophilic.8
1582.
Nylon is corrosion resistant
8
159Match the terms of column I correctly
with the phrases given in column II.
8
160All are natural fibres except
A . silk
B. cotton
c. Nylon
D. wool
8
1611.
Why is rayon called a regenerated fibre?
8
162… is the synthetic fibre used as wool.
7
1
1
8
16316. We can mould plastics into various shapes because of the
property of elasticity in them.
8
1645.
Plastics are
(a) salts
(c) polymers
(b) acids
(d) solvents
8
16510. Say no for polythene bags and say yes for paper bags.
Comment on this slogan.
8
1661.
Plastics
(a) are organic material of high molecular weight
(b) are polymers having long chains
(c) are made by the process of polymerisation
(d) only (a) and (b) are correct
8
167Containers which are light weight, lower price, good strength and easy to handle is made up of :
A. Plastic
B. Metal
c. wood
D. Brick
8
168State whether true or false:
Bakelite is the first synthetic thermosetting plastics.
A. True
B. False
8
169The IUPAC name for Teflon is:
A. polytrifluoroethane
B. polytetrafluoroethane
c. polytrifluoroethylene
D. polytetrafluoroethylene
8
170Statement: Teflon doesn’t stick to the
materials and can be easily used in non-sticky pans and other cookware.
A. True
B. False
8
171When we burn nylon, why we do not get
the smell of burning paper or burning
hair?
8
172Polystyrene and PVC are thermoplastics
A. True
B. False
8
173fibres are obtained
from plants and animals.
A. Natural
B. Plant
c. Animal
D. Synthetic
8
1743.
Select the synthetic polymer whose filament was first
obtained that could be streched several times its original
length
(a) Nylon
(b) polyester
(c) Acrylic
(d) none of these.
8
175Assertion
The handle and bristles of a tooth brush
should be made of different material
Reason

The handle of a toothbrush should be
hard and strong while the bristles
should be soft and flexible.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

8
176Cotton fibers are separated from seeds
by:
A. combing
B. knitting
c. weaving
D. rubbing
8
17711. Name two articles made by rayon,8
1781.
Match Column-I with Column-II and select the correct
answer using the code given below in the columns.
Columns
Column-II
(A) Rayon
(p) Polymer of
diacid and diamine
B) Nylon
(q) Terylene
(C) Polyester
) Regenerated cellulos
D) Polystyrene
(s) Light foam used for
insulating and
packing
(a) A-(); B-p); C-(q); D-(s)
6) A-(s); B-(); C-(q); D-()
(c) A-(t); B-9); C-(p); D-(s)
(d) A-); B-(s); C-@); D-(0)
1_T
alent the
8
179Yarn can be converted into fabrics by
the process of spinning.
A . True
B. False
8
180Which type of cloth dries faster in rainy
season?
A. cotton
B. Wool
c. Polyester
D. silk
8
181Use of charkha was popularized by Mahatma Gandhi as part of the Independence movement.
A. True
B. False
8
182State True or False.
Polystyrene and PVC are thermoplastics
8
183Plastic is bad for environment because:
A. they are non-biodegradable
B. they harm aquatic life
C. they are toxin carrier
D. all of these
8
1846.
Common name of PETE is terylene
8
18511. Should the handle and bristles of a tooth brush be made of
the same material? Explain your answer.
8
1864.
The hard plastic covers of telephones are made of polymers
of
(a) styrene
(b) acrylonitrile
(c) ethene
(d) none of these
8
187Animal fibers generally comprise of:
A. collagen.
B. keratin
c. both ( A ) and ( B ).
D. triglycerides.
8
188Which of the following are examples of transparent material?
A . Glass
B. water
c. Plastic
D. All of these
8
189Which of the following is an example of soft and fine wool?
A. Merino
B. cotswold
c. Both A and B
D. None of them
8
19010.
Plastic melamine is fire resistant.
8
1914.
Tensile strength of nylon is …………… than that of cotton.
plastic
8
192Which of the following are natura
fibres?
A. wool, cotton, nylon, jute
B. jute, silk, rayon, wool
c. silk, cotton, wool, jute
D. silk,jute, cotton, polyester
8
193is a popular polyester.
A. Plastic
B. Polythene
C . Rayon
D. Terylene
8
194The two types of arrangements of plastics are :
A . linear
B. cross linked
c. both A and B
D. None of above
8
195Assertion : Clothes made up of synthetic fibre are
unsuitable for hot and humid weather.
Reason: Synthetic clothes not breathe so well
8
196Rayon or artificial silk is obtained from :
A. cocoon
B. petroleum
c. silk fibre
D. wood pulp
8
197Assertion
Plastic grocery bags do not block drains during rains.
Reason
Plastics are lighter than water and
hence float over water
Read the above assertion and reason
and choose the correct option regarding
¡t.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
8
198Assertion
Bakelite is first completely synthesized thermoplastic.
Reason
Thermosetting plastics are harder.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is
not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
8
199Which of the followings prove that plastics do not make food and medicine
toxic?
A. Milk pouches
B. Edible oil container
c. Ice-cream packs
D. All of these
8

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