Polymers Test

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Polymers Test - 45

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Weekly Quiz Competition

Question 1
1 / -0

Monomer used to prepare orlon is:

A
$$CH_2 = CHCN$$

B
$$CH_2 = CH - CI$$

C
$$CH_2 = CHF$$

D
$$CH_2 = CCI_2$$

Solution

Orlon is the one of the polymer created by DuPont in the year 1941. These are strong and warm used for sweaters and tracksuits.
The monomer of this polymer Orlon is a acrylonitrile [$$CH_2=CHCN$$].
Question 2
1 / -0

Sulphur is used in the ________ of rubber.

A
condensation

B
vulcanization

C
addition

D
substitution

Solution

Sulphur is used in Vulcanization of Rubber.
(Refer to Image)
Cross-linked poly (isoprene)
Vulcanized Rubber.
Question 3
1 / -0

Polytetrafluoroethylene is commercially knowns as?

A
Teflon

B
Freon

C
Lewisite

D
Westron

Solution

It is commonly known as PTFE is a synthetic fluro-polymer of tetra fluroethylene.It is of high molecule weight and made up of mainly carbon and fluorine the best known brand name of PTFE based formulas is TEFLON which is extensively used in cookwares such as non stick pans.
Refer to image.
Question 4
1 / -0

Plexiglass, also known as PMMA is a polymenr of:

A
methyl acrylate

B
methyl methacrylate

C
acrylic acid

D
none of these

Solution

PMMA:- Poly(methyl methacrylate)
(Refer to Image)
Question 5
1 / -0

Which one of the following is an example of co-polymer ?

A
Buna - S

B
Teflon

C
PVC

D
Polypropylrnr

Solution

Copolymer is a polymer made of two or more than two different monomers.
Buna-S is made of $$1,3-$$butadiene and styrene monomer.
But others are made of single polymer only.
Teflon $$\longrightarrow$$ Tetrafluorocarbon.
PVC $$\longrightarrow$$ Vinyl Chloride.
Polypropylene $$\longrightarrow$$ Propylene.
Question 6
1 / -0

Which of the following cannot be oxidised by bromine water?

A
D-arabinose

B
D-glyceraldehyde

C
L-glucose

D
L-fructose

Solution
Question 7
1 / -0

Which of the following polymerises most easily?

A
$$CH_{3}CH_{2}CaCH$$

B

C

D

Solution
Question 8
1 / -0

The substance used to harden the rubber for tyre manufacture is:

A
wax

B
1,3-butadiene

C
calcium carbide

D
carbon black

Solution

Answer is option $$D.$$
$$\text{carbon black}:$$ carbon black is a rubber reinforcing additive. As a filler in tires, it also helps to extend the life of tire by conducting heat away from tread and belt area.
Question 9
1 / -0

During the vinyl polymerisation, the chain transfer agent is:

A
$$C{Cl}_{4}$$

B
$${C}_{6}{H}_{5}OH$$

C
t-butyl peroxide

D
diphenylamine

Solution

In the presence of $$C{Cl}_{4}$$ or any other chain transfer agents, the monomer polymerizes to give lower average molecular mass polymers.
Hence, the correct option is A.
Question 10
1 / -0

Which of the following is condensation polymer?

A
Polypropylene

B
PMMA

C
Glyptal

D
Teflon

Solution