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

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

Advertisements
Advertisements

प्रश्न

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

रासायनिक समीकरणे/रचना
लघु उत्तर

उत्तर

Repeating unit in natural rubber is obtained from the monomer isoprene.

Structure of repeating unit is:

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

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Introduction to Polymer Chemistry - Exercises [पृष्ठ ३३८]

APPEARS IN

बालभारती Chemistry [English] 12 Standard HSC
पाठ 15 Introduction to Polymer Chemistry
Exercises | Q 3. viii. | पृष्ठ ३३८

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write the reactions involved in the preparation of  PVC


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

Melamine – formaldehyde polymer


Draw the structures of veronal and thymine. 


Write the monomers of the following polymer : 


Answer the following.

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


Answer the following.

Name the polymer type in which following linkage is present.

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


Draw the structures of polymers formed from the following monomers

\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]


Answer the following.

Draw the structures of polymers formed from the following monomers

H2N–(CH2)5 – COOH


Attempt the following:

Write preparation, properties and uses of Teflon.


Answer the following.

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


Write preparation of low density polythene.


Mention two uses of LDP.


Write chemical reaction for preparation of the following.

Buna-S


Write two uses and two properties of polythene.


Explain vulcanization of rubber.


Define rubber.


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


Identify the CORRECT statement regarding the following polymer.

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


Which of the following is the monomer of neoprene?


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


Which among the following polymers can NOT be remoulded?


Which of the following compounds is used to prepare orlon?


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 monomers is used in the manufacture of Neoprene rubber?


Which of the following polymer is used to make blankets?


Which among the following is an example of addition polymer?


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  

Which of the following is not a copolymer?


Which of the following products is formed when benzaldehyde is treated with CH3MgBr and the addition product so obtained is subjected to acid hydrolysis?


The monomer of Teflon is ______.


Trans - form of poly isoprene is:-


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


Which of the following is an example of polyester?


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


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.


How the Bakelite is prepared? Give the steps involved in the preparation.


Write the preparation of viscose rayon.


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 Nylon-6.


Name and draw the 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.


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


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 the structure of the repeating unit in natural rubber.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×