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प्रश्न
Write chemical reaction for preparation of the following.
Buna-S
Write chemical reaction for the preparation of the following polymer.
SBR
उत्तर
Chemical reaction for preparation of Buna-S:
संबंधित प्रश्न
Write the chemical reaction to prepare novolac polymer.
Write the formulae of the raw materials used for preparation of Dextran.
The Zieglar-Natta catalyst is used in the preparation of _______.
(A) LDPE
(B) PHBV
(C) PAN
(D) HDPE
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.
Define the term: Vulcanization
Answer the following.
Write the reaction of the formation of Nylon 6.
Answer the following.
Name the polymer type in which following linkage is present.
\[\begin{array}{cc}\ce{- C - O -}\\||\phantom{.....}\\
\ce{O\phantom{.....}}\end{array}\]
Answer the following.
Draw the structures of polymers formed from the following monomers
H2N–(CH2)5 – COOH
Identify condensation polymers and addition polymers from the following.
\[\begin{array}{cc}\ce{-(CH2 - CH -)_{n}}\\
\phantom{....}|\\\ce{\phantom{.......}C6H5}
\end{array}\]
Identify condensation polymers and addition polymers from the following.
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Attempt the following:
Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N
Write the reaction involved in the formation of:
Bakelite
Answer the following.
Is synthetic rubber better than natural rubber? If so, in what respect?
Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________
Write the name of the catalyst used for preparation of high density polythene polymer.
Write a chemical reaction for the preparation of the following polymer.
polyacrylonitrile
Explain the reactions involved in the preparation of viscose rayon.
Which of the following is used as a substitute for wool?
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
How many isoprene units are present in abscisic acid?
Identify the CORRECT statement regarding the following polymer.
\[\begin{array}{cc}
\phantom{....}\ce{O}\phantom{............}\ce{O}\phantom{...................}\ce{H}\phantom{.....}\\
\phantom{....}||\phantom{.............}||\phantom{...................}|\phantom{......}\\
\ce{-[C - (CH2)4 - C - NH - (CH2)6 - N -]_{{n}}}
\end{array}\]
\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]
Which of the following is CORRECT about polymer 'X'?
Novolac is obtained from ____________.
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 polymers is prepared by using phenol?
Which of the following pair of compounds is used as monomers for bakelite?
Which of the following polymers is used as insulation for cables?
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
Trans - form of poly isoprene is:-
Which of the following is an example of polyester?
Which of the following polymers do not involve cross linkages?
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Identify the monomer used to prepare neoprene.
Which of the following is a polymer of enzyme?
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
Name and draw the structure of the repeating unit in natural rubber.
How the Bakelite is prepared? Give the steps involved in the preparation.
Write the preparation of viscose rayon.
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 |
Name and draw the structure of the repeating unit in 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 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.
