Polymers Test

Result

Polymers Test - 51

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Weekly Quiz Competition

Question 1
1 / -0

Which is not a polymer?

A
Sucrose

B
Enzyme

C
Starch

D
Teflon

Solution
Question 2
1 / -0

Condensation product of caprolactum is:

A
nylon-6

B
nylon-6,6

C
nylon-60

D
nylon-6,10

Solution
Question 3
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Which one of the following statements is not true?

A
Buna-S is a co-polymer of butadiene and styrene

B
Natural rubber is a 1, 4-polymer of isoprene

C
In vulcanization, the formation of sulphur bridges between different chains make rubber harder and stronger

D
Natural rubber has the trans-configuration at every double bond

Solution
Question 4
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Buna-N synthetic rubber is a co-polymer of

A

B
$$H_2C=CH-CH=CH_2$$ and $$H_5C_6-CH=CH_2$$

C
$$H_2C=CH-CN$$ and $$H_5C=CH-CH=CH_2$$

D

Solution
Question 5
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The raw material used in nylon-6 is:

A
adipic acid

B
phthalic acid

C
ethylene glycol

D
caprolactum

Solution
Question 6
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The polymer of natural rubber is

A
all trans isoprene

B
Buna-N

C
all cis isoprene

D
none of these

Solution
Question 7
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Mark out the most unlike form of polymerization of $$H_2C=CH-CH=CH_2$$

A

B

C

D

Solution
Question 8
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Among the following a natural polymer is:

A
Cellulose

B
PVC

C
Teflon

D
Polyethylene

Solution

Cellulose is an organic compound with the formula $$(C_6H_{10}O_5)_n$$, a polysaccharide.
It is found on the wall of green plants, many forms of algae and some species of bacteria secrete it to form biofilms. Hence, it is a natural polymer.

Polyvinyl chloride (PVC) is synthesized from vinyl chloride monomer.

Teflon is a polymer, which is made by joining together lots of smaller molecules of tetrafluoroethylene (TFE).
Polyethylene or polythene is the most common plastic made from ethylene.

Hence, option $$A$$ is correct.
Question 9
1 / -0

Natural rubber is:

A
Polyester

B
Polyamide

C
Polyisoprene

D
Polysaccharide

Solution

Natural rubber also called by other names of India rubber, latex consists of polymers of the organic compound isoprene.
Hence, natural rubber is polyisoprene.
The answer is option $$C$$.
Question 10
1 / -0

In the natural rubber ‘Caoutchouc’, the isoprene units are joined by:

A
Head-to-head

B
Tail-to-tail

C
Head-to-tail

D
All of these

Solution

Natural rubber Caoutchouc means natural rubber that has not been vulcanized.
It is generally conceded that natural rubber consist of 1,4 structural units in head-to-tail sequence and this arrangement is confirmed by X-ray diffraction of highly stretched rubber.

Hence, option $$A$$ is correct.