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Answer the following. Write main specialities of Buna-S, Neoprene rubber? - Chemistry

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प्रश्न

Answer the following.

Write main specialities of Buna-S, Neoprene rubber?

टीपा लिहा
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उत्तर

  1. Buna-S:
    It has mechanical strength and has abrasion resistance. Hence, it is used in tyre industry.
  2. Neoprene:
  • Neoprene is particularly resistant to petroleum, vegetable oils, light as well as heat.
  • Hence, it is used in making hose pipes for the transport of gasoline and making gaskets.
  • It is used for manufacturing insulator cable, jackets, belts for power transmission and conveying.
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पाठ 15: Introduction to Polymer Chemistry - Exercises [पृष्ठ ३३९]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 15 Introduction to Polymer Chemistry
Exercises | Q 5. iii. | पृष्ठ ३३९

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write any ‘two’ uses of terylene.


Write the reactions involved in the preparation of  PVC


Explain the following term: Homopolymers


Based on molecular forces, what type of polymer is neoprene?


The Zieglar-Natta catalyst is used in the preparation of _______.

(A) LDPE

(B) PHBV

(C) PAN

(D) HDPE


Write the structures of the monomers used for getting the following polymers

Melamine – formaldehyde polymer


Answer the following in one sentence.

Identify 'A' in the following reaction:


Answer the following in one sentence.

Identify 'B' in the following reaction:

\[\ce{H2N -(CH2)6 - NH2 + HOOC - (CH2)4 - COOH ->[N2][533 K]}\]'B'


Answer the following in one sentence.

Identify thermoplastic and thermosetting plastic from the following:

  1. PET
  2. Urea formaldehyde resin
  3. Polythene
  4. Phenol formaldehyde resin

Identify condensation polymers and addition polymers from the following.

\[\begin{array}{cc}\ce{-(CH2 - CH -)_{n}}\\
\phantom{....}|\\\ce{\phantom{.......}C6H5}
\end{array}\]


Identify condensation polymers and addition polymers from the following.

-(CH2 - CH = CH - CH2 -)n


Attempt the following:

Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N


Attempt the following:

What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.


Answer the following.

Is synthetic rubber better than natural rubber? If so, in what respect?


Monomer used for preparation of polyacrylonitrile is _____________


Write preparation of low density polythene.


Write chemical reaction for preparation of the following.

Buna-S


Write the name and formulae of the monomers used for the preparation of dacron.


Explain vulcanization of rubber.


Which of the following polymer is used in paints?


How many isoprene units are present in abscisic acid?


Identify the INCORRECT match.


\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]

Which of the following is CORRECT about polymer 'X'?


Novolac is obtained from ____________.


Which of the following polymers is a heteropolymer?


Which of the following compounds is used to prepare orlon?


Which among the following polymers is obtained from CH2 = CH – CN by polymerisation?


Which among the following catalysts is used in the preparation of dacron?


Which of the following polymers is prepared by using phenol?


Which of the following monomers is used in the manufacture of Neoprene rubber?


Which among the following polymers is an example of addition polymer?


Which among the following polymers is used to manufacture chemical containers?


Which among the following is an example of addition polymer?


Which of the following products is formed when benzaldehyde is treated with CH3MgBr and the addition product so obtained is subjected to acid hydrolysis?


Which of the following polymer has ester linkage?


Which one of the following polymers are prepared by addition polymerization?


Which of the following is an example of polyester?


Nylon threads are made of ______.


Polymer used in bullet proof glass is ______.


Answer the following.

Name and draw structure of the repeating unit in natural rubber.


Write the structure of isoprene and the polymer obtained from it.


Write the name of the monomer of natural rubber.


Name and draw structure of the repeating unit in natural rubber.


Match the following pairs:

Polymer Monomer
(i) Teflon (a) CH2 = CH2
(ii) PVC (b) CF2 = CF2
(iii) Natural rubber (c) Isoprene
(iv) Polythene (d) H2C=CHCl

Write the structure of isoprene and the polymer obtained from it.


Name and draw the structure of the repeating unit in natural rubber.


Write the structure of isoprene and the polymer obtained from it.


 Write the structure of isoprene and the polymer obtained from it.


Name and draw structure of the repeating unit in natural rubber.


Write the structure of isoprene and the polymer obtained from it.


Name and draw structure of the repeating unit in natural rubber.


Write the structure of isoprene and the polymer obtained from it.


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