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प्रश्न
Answer the following in one sentence.
Define the term: Vulcanization
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उत्तर
The process by which a network of cross-links is introduced into an elastomer is called vulcanization.
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संबंधित प्रश्न
Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
(d) Formaldehyde and benzyl alcohol
Write the formulae of the raw materials used for preparation of Dextran.
Write the structure of melamine.
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 in one sentence.
What type of intermolecular force leads to high-density polymer?
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.
Write the reaction involved in the formation of bakelite.
Write preparation, properties, and uses of Teflon.
Write the name of the catalyst used for preparation of high density polythene polymer.
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
Write preparation of low density polythene.
Mention two uses of LDP.
Write chemical reaction for preparation of the following.
Buna-S
Write chemical reactions for the preparation of high-density polythene.
Define rubber.
Which among the following polymers is obtained from styrene and 1-3-butadiene?
Which among the following polymers is used for making handles of cooker?
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.
How many isoprene units are present in abscisic acid?
Identify the CORRECT statement regarding the following polymer.
\[\begin{array}{cc}
\phantom{....}\ce{O}\phantom{............}\ce{O}\phantom{...................}\ce{H}\phantom{.....}\\
\phantom{....}||\phantom{.............}||\phantom{...................}|\phantom{......}\\
\ce{-[C - (CH2)4 - C - NH - (CH2)6 - N -]_{{n}}}
\end{array}\]
The INCORRECT match for the polymer with its application is:
Which of the following is the monomer of neoprene?
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which of the following polymers is prepared by using phenol?
Which among the following polymers is an example of addition polymer?
Which of the following polymers is used as insulation for cables?
Which of the following is not a semisynthetic polymer?
The commercial name of polyacrylonitrile is ______.
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 |
The monomer of Teflon is ______.
Which of the following polymer has ester linkage?
Trans - form of poly isoprene is:-
Polymer used in bullet proof glass is ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Which of the following is a polymer of enzyme?
Which of the foolowing polymer is used in the manufacture of insulators.
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.
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 the 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.
Write the structure of isoprene and the polymer obtained from it.
Which from following statements is NOT true regarding neoprene?
