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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write the structure of the monomer used in natural rubber.

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प्रश्न

write the structure of the monomer used in natural rubber.

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उत्तर

\[\begin{array}{cc}\ce{CH3\phantom{....}}\\
|\phantom{.......}\\\ce{CH2 = \underset{\text{Isoprene}}{C - CH} = CH2}\end{array}\]

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

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write the reactions involved in the preparation of  PVC


Bakelite is the polymer of:

(a) Benzaldchyde and phenol

(b) Acetaldehyde and phenol

(c) Formaldehyde and phenol

(d) Formaldehyde and benzyl alcohol

 


Write the structure of melamine.


Choose the correct option from the given alternatives.

Which of the following is made up of polyamides?


Answer the following in one sentence.

What type of intermolecular force leads to high-density polymer?


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

Answer the following.

Write the reaction of the formation of Nylon 6.


Answer the following.

Draw the structures of polymers formed from the following monomers

H2N–(CH2)5 – COOH


Answer the following.

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


Identify condensation polymers and addition polymers from the following.

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


Identify condensation polymers and addition polymers from the following.

-(CO(CH2)4 - CONH(CH2)6NH-)n


Identify condensation polymers and addition polymers from the following.


Attempt the following:

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


Answer the following.

Write main specialities of Buna-S, Neoprene rubber?


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


Monomer of natural rubber is __________


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


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


The following structure represents the polymer:

\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]


Which of the following polymer is used in paints?


Identify additional polymers from the following.

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

II. \[\ce{-(CH2 - CH = CH - CH2 -)_{{n}}}\]

III. \[\ce{-(CO(CH2)4 - CONH(CH2)6NH -)_{{n}}}\]

IV.


The INCORRECT match for the polymer with its application is:


Which of the following is the monomer of neoprene?


Select the CORRECT match for both the polymers.


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

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


Which of the following polymers is obtained from chloroprene?


Which among the following polymers can NOT be remoulded?


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 polymers is used as insulation for cables?


The commercial name of polyacrylonitrile is ______.


Which of the following polymers, need atleast one diene monomer for their preparation?

(i) Dacron

(ii) Buna-S

(iii) Neoprene

(iv) Novolac


Match the polymers given in Column I with the type of linkage present in them given in Column II.

Column I Column II
(i) Terylene (a) Glycosidic linkage
(ii) Nylon (b) Ester linkage
(iii) Cellulose (c) Phosphodiester linkage
(iv) Protein (d) Amide linkage
v) RNA  

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 of the following polymer has ester linkage?


Which of the following is an example of polyester?


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?


Name the compound which reacts with formaldehyde to produce ethyl alcohol.


Write the structure and name of monomer of 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 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.


Name and draw 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.


Identify polyamide polymer from following.


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