मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

Advertisements
Advertisements

प्रश्न

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

थोडक्यात उत्तर
रासायनिक समीकरणे/रचना
Advertisements

उत्तर

1) Isoprene:

\[\begin{array}{cc}\ce{H2C = C - C = CH2}\\
|\phantom{....}|\\\ce{\underset{(isoprene)}{CH3  H}}\end{array}\]

2) Polymer of isoprene (polyisoprene or natural rubber):

\[\begin{bmatrix}\begin{array}{cc}\ce{H\phantom{............}}\ce{H}\\
|\phantom{.............}|\\\ce{- C - C = C - C -}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\phantom{.}\ce{H}\phantom{...}\ce{CH3}\phantom{.}\ce{H}\phantom{...}\ce{H}\phantom{.}\\
\end{array}\end{bmatrix}_\text{n}\]

   (polyisoprene/rubber)

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Introduction to Polymer Chemistry - Exercises [पृष्ठ ३३९]

APPEARS IN

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

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write the reactions involved in the preparation of  PVC


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


Draw the structures of veronal and thymine. 


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 Terylene.


Answer the following.

Draw the structures of polymers formed from the following monomers

H2N–(CH2)5 – COOH


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


Monomer used for preparation of polyacrylonitrile is _____________


Monomer of natural rubber is __________


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

polyacrylonitrile


Write chemical reaction for preparation of the following.

Buna-S


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

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


Explain vulcanization of rubber.


Define rubber.


Which among the following polymers is used for making handles of cooker?


Which of the following polymer is used in paints?


Identify the CORRECT statement regarding the following polymer.

\[\begin{array}{cc}
\phantom{....}\ce{O}\phantom{............}\ce{O}\phantom{...................}\ce{H}\phantom{.....}\\
\phantom{....}||\phantom{.............}||\phantom{...................}|\phantom{......}\\
\ce{-[C - (CH2)4 - C - NH - (CH2)6 - N -]_{{n}}}
\end{array}\]


The INCORRECT match for the polymer with its application is:


Select the CORRECT match for both the polymers.


Which of the following polymers is obtained from chloroprene?


Which of the following polymers is a heteropolymer?


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


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


Identify the catalyst used in the manufacture of high density polythene.


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


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


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

(i) Dacron

(ii) Buna-S

(iii) Neoprene

(iv) Novolac


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

Which of the following is not a copolymer?


The monomer of Teflon is ______.


Trans - form of poly isoprene is:-


Polymer used in bullet proof glass is ______.


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?


The monomer of natural rubber is ______.


Answer the following.

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


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


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


Write the name of the monomer of 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 monomer of natural rubber.


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


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


Which among the following is a monomer of natural rubber?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×