Polymers Test

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Polymers Test - 52

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Weekly Quiz Competition

Question 1
1 / -0

Natural rubber is which type of polymer?

A
Condensation polymer

B
Addition polymer

C
Co-ordination polymer

D
None of these

Solution

Natural rubber is an addition polymer that is obtained as a milky white fluid known as latex from a tropical rubber tree. Natural rubber is from the monomer isoprene (2-methyl-1,3-butadiene). Since isoprene has two double bonds, it still retains one of them after the polymerization reaction.
Hence, option $$B$$ is correct.
Question 2
1 / -0

Polythene is:

A
Thermoplastic

B
Thermosetting

C
Both (a) and (b)

D
None of these

Solution

A thermoplastic is a material, usually, a plastic polymer, which becomes softer when heated and hard when cooled.
Polyethylene (PE) is the most widely used thermoplastic polymer for fabricated parts and components.

Hence, option $$A$$ is correct.
Question 3
1 / -0

Which of the following is synthetic rubber?

A
Buna-S

B
Neoprene

C
Both (a) and (b)

D
None of these

Solution

Synthetic rubber is capable of getting stretched to twice its length. However, it returns to its original shape and size as soon as the external stretching force is released.
The different types of synthetic rubber include neoprene, Buna rubbers, and butyl rubbers.

Hence, option $$C$$ is correct that both Buna-S and Neoprene are synthetic rubbers.
Question 4
1 / -0

The above shown polymer is obtained when a carbon compound is allowed to stand. It is a white solid. The polymer is

A
Trioxane

B
Formose

C
Paraformaldehyde

D
Metaldehyde

Solution
Question 5
1 / -0

Which of the following is Teflon

A
$$[ -CF_2 - CF_2 - ]_n$$

B
$$CF_2 = CF_2$$

C
$$CF \equiv CF$$

D
None of these

Solution

Polytetrafluoroethylene, better known as Teflon, is a synthetic fluoropolymer. A synthetic fluoropolymer is a fluorocarbon-based polymer with multiple strong carbon-fluorine bonds, making it highly resistant to solvents, acids and bases.

A is correct option
Question 6
1 / -0

Bakelites are:

A
Rubber

B
Rayon

C
Resins

D
Plasticisers

Solution

Bakelite is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde.
Hence, option $$C$$ is correct.
Question 7
1 / -0

Which is not a polymer?

A
Sucrose

B
Enzyme

C
Starch

D
Teflon

Solution

A polymer is a substance which has a molecular structure built up completely from a large number of similar units bonded together.

Enzymes are made up of long chains of amino acids that are held together by peptide bonds.

Starch is a polymer of glucose. It is formed by the attachment of glucose units by glycosidic bonds.

Teflon is a polymer, which is made by joining tetrafluoroethylene (TFE).

The best known "sugar" is sucrose which consists of a-d-glucose joined to fructose. The molecules are joined by loss of water to give the disaccharide sucrose. Which is not a polymer.

Hence, option $$A$$ is correct.
Question 8
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Example of formation of polymer is.

A
Formaldehyde $$\rightarrow $$ meta-formaldehyde

B
Acetaldehyde $$\rightarrow $$ para-aldehyde

C
Acetone $$\rightarrow $$ mesityl oxide

D
Ethene $$\rightarrow $$ polyethene

Solution

Polyethene is a polymer synthesized from ethene by addition polymerization.
The answer is option $$D$$.
Question 9
1 / -0

Neoprene, a synthetic rubber contains which of the following element besides C and H?

A
$$N$$

B
$$O$$

C
$$Cl$$

D
$$F$$

Solution

Neoprene (also polychloroprene) is a family of synthetic rubbers that are produced by polymerization of chloroprene. It has chlorine atom besides hydrogen and carbon element.
Hence, option $$C$$ is correct.
Question 10
1 / -0

Which is not a polymer

A
Ice

B
Starch

C
Protein

D
Cellulose

Solution

Starch, protein, cellulose are natural polymer.
Ice is the solid state of water $$(H_2O)$$.
Hence, option $$A$$ is the answer.

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Polymers Test - 52

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Polymers Test - 52

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Question 1

Condensation polymer

Addition polymer

Co-ordination polymer

None of these

Solution

Question 2

Thermoplastic

Thermosetting

Both (a) and (b)

None of these

Solution

Question 3

Buna-S

Neoprene

Both (a) and (b)

None of these

Solution

Question 4

Trioxane

Formose

Paraformaldehyde

Metaldehyde

Solution

Question 5

$$[ -CF_2 - CF_2 - ]_n$$

$$CF_2 = CF_2$$

$$CF \equiv CF$$

None of these

Solution

Question 6

Rubber

Rayon

Resins

Plasticisers

Solution

Question 7

Sucrose

Enzyme

Starch

Teflon

Solution

Question 8

Formaldehyde $$\rightarrow $$ meta-formaldehyde

Acetaldehyde $$\rightarrow $$ para-aldehyde

Acetone $$\rightarrow $$ mesityl oxide

Ethene $$\rightarrow $$ polyethene

Solution

Question 9

$$N$$

$$O$$

$$Cl$$

$$F$$

Solution

Question 10

Ice

Starch

Protein

Cellulose

Solution

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