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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

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प्रश्न

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

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उत्तर

Monomers used in the preparation of dacron are ethylene glycol and terephthalic acid.

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

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
पाठ 15 Introduction to Polymer Chemistry
Short Answer Questions (Type-II) | Q 2.2

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write any ‘two’ uses of terylene.


Write the reactions involved in the preparation of  PVC


Write the chemical reaction to prepare novolac polymer.


Bakelite is the polymer of:

(a) Benzaldchyde and phenol

(b) Acetaldehyde and phenol

(c) Formaldehyde and phenol

(d) Formaldehyde and benzyl alcohol

 


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

Melamine – formaldehyde polymer


Choose the correct option from the given alternatives.

Which of the following is made up of polyamides?


Answer the following in one sentence.

Identify 'A' in the following reaction:


Answer the following.

Write the reaction of the formation of Nylon 6.


Answer the following.

Write the reaction of the formation of Terylene.


Answer the following.

Name the polymer type in which following linkage is present.

\[\begin{array}{cc}\ce{- C - O -}\\||\phantom{.....}\\
\ce{O\phantom{.....}}\end{array}\]


Identify condensation polymers and addition polymers from the following.

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


Write the reaction involved in the formation of:

Bakelite


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?


Monomer used for preparation of polyacrylonitrile is _____________


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

polyacrylonitrile


Write preparation of low density polythene.


Write the name of one example of each polymer in which following repeating units.

\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]


Which among the following polymers is obtained from styrene and 1-3-butadiene?


Which of the following is the monomer of neoprene?


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

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


Which of the following polymers is obtained from chloroprene?


Identify the polymer obtained by polymerization of n moles of acrylonitrile.


Which of the following compounds is used to prepare orlon?


Identify the monomers used in the preparation of Novolac.


Which of the following polymers is prepared by using phenol?


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


Identify addition polymer from the following.


Which among the following is an example of addition polymer?


Phenol and formaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B). Name the polymers. Write the reactions involved in the formation of (A). What is the structural difference between two polymers?


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 one of the following polymers are prepared by addition polymerization?


Which of the following polymers is synthesized using a free radical polymerisation technique?


Which of the following polymers do not involve cross linkages?


Which of the following is a polymer of enzyme?


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.


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

The monomer used in preparation of teflon is ______.


Write the structure and name of the monomer of Nylon-6.


Name and draw the 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.


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 the structure of the repeating unit in natural rubber.


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


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