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Write the structure of the monomer used in natural rubber. - Chemistry

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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)

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
पाठ 15 Introduction to Polymer Chemistry
Short Answer Questions (Type-I) | Q 3.2

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write any ‘two’ uses of terylene.


Write the chemical reaction to prepare novolac polymer.


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.


Answer the following.

Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.


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?


Answer the following.

Write main specialities of Buna-S, Neoprene rubber?


Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________


Write chemical reaction for preparation of the following.

Buna-S


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


Write two uses and two properties of polythene.


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.


Identify the INCORRECT match.


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 a heteropolymer?


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


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


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 of the following pair of compounds is used as monomers for bakelite?


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


Identify addition polymer from the following.


The commercial name of polyacrylonitrile is ______.


Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.


Match the polymers given in Column I with their repeating units given in Column II.

Column I Column II
(i) Acrilan

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

(ii) Polystyrene (b) \[\begin{array}{cc}
\ce{Cl}\phantom{.......}\\
|\phantom{........}\\
\phantom{}\ce{-(CH2 - C = CH - CH2)\underset{n}{-}}
\end{array}\]
(iii) Neoprene (c) \[\begin{array}{cc}
\phantom{................................}\ce{CN}\\
\phantom{..............................}|\\
\ce{-(CH2 - CH = CH - CH2 - CH2 - CH)\underset{n}{-}}
\end{array}\]
(iv) Novolac (d) \[\begin{array}{cc}
\ce{-(CH2 - CH)\underset{n}{-}}\\
\phantom{.....}|\\
\phantom{.......}\ce{CN}
\end{array}\]
(v) Buna—N (e) 
  (f)  \[\begin{array}{cc}
\ce{-(CH2 - CH)\underset{n}{-}}\\
\phantom{.....}|\\
\phantom{......}\ce{Cl}
\end{array}\]

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?


F2C = CF2 is monomer of the polymer -


Which of the following polymer has ester linkage?


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


Which of the following is a polymer of enzyme?


Which of the foolowing polymer is used in the manufacture of insulators.


Answer the following.

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


Answer the following.

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.


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


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


Another name of terylene is ______.


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 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.


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