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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write chemical reactions for the preparation of high-density polythene.

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प्रश्न

Write chemical reactions for the preparation of high-density polythene.

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उत्तर

Chemical reaction for the preparation of high-density polythene (HDP) is as follows:

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पाठ 15: Introduction to Polymer Chemistry - Short Answer Questions (Type-II)

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एससीईआरटी महाराष्ट्र Chemistry [English] Standard 12 Maharashtra State Board
पाठ 15 Introduction to Polymer Chemistry
Short Answer Questions (Type-II) | Q 3.1

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write the chemical reaction to prepare novolac polymer.


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

(A) LDPE

(B) PHBV

(C) PAN

(D) HDPE


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.

Write the reaction of the formation of Terylene.


Draw the structures of polymers formed from the following monomers

\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]


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


Answer the following.

Write name and formula of raw material from which bakelite is made.


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:

Write the chemical reactions involved in the manufacture of Nylon 6,6.


Attempt the following:

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


Write preparation, properties, and uses of Teflon.


Answer the following.

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


Answer the following.

Write main specialities of Buna-S, Neoprene rubber?


Write the name of the catalyst used for preparation of high density polythene polymer.


Monomer used for preparation of polyacrylonitrile is _____________


Write a chemical reaction for the preparation of the following polymer.

polyacrylonitrile


Mention two uses of LDP.


Write chemical reaction for preparation of the following.

Buna-S


Write chemical reaction for preparation of the following.

Neoprene


Write two uses and two properties of polythene.


Explain vulcanization of rubber.


Explain the reactions involved in the preparation of viscose rayon.


Identify the INCORRECT match.


Select the CORRECT match for both the polymers.


Which of the following catalysts is used in preparation of terylene?


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


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


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 is not a semisynthetic polymer?


The monomer of Teflon is ______.


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


Polymer used in bullet proof glass is ______.


Which of the following polymers do not involve cross linkages?


Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?


Which among the following polymers has high tensile strength and is used to obtain tyre cords?


Which of the following is a polymer of enzyme?


Answer the following.

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


Answer the following.

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


Answer the following.

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


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


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

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


Name and draw the 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.


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.


Which from following statements is NOT true regarding neoprene?


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