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प्रश्न
Write the structure of melamine.
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उत्तर
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संबंधित प्रश्न
Write any ‘two’ uses of terylene.
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.
Draw the structures of veronal and thymine.
Write the monomers of the following 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 in one sentence.
Define the term: Vulcanization
Answer the following in one sentence.
What type of intermolecular force leads to high-density polymer?
Answer the following.
Write name and formula of raw material from which bakelite is made.
Identify condensation polymers and addition polymers from the following.
-(CH2 - CH = CH - CH2 -)n
Identify condensation polymers and addition polymers from the following.
Write the reaction involved in the formation of bakelite.
Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________
Write a chemical reaction for the preparation of the following polymer.
polyacrylonitrile
Write chemical reaction for preparation of the following.
Buna-S
Write chemical reaction for preparation of the following.
Neoprene
Write the name of one example of each polymer in which following repeating units.
\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]
Define rubber.
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.
Select the CORRECT match for both the polymers.
Novolac is obtained from ____________.
Which of the following catalysts is used in preparation of terylene?
Which among the following polymers is obtained from CH2 = CH – CN by polymerisation?
Which among the following catalysts is used in the preparation of dacron?
Identify the monomers used in the preparation of Novolac.
Which among the following monomers is used to prepare Teflon?
Which of the following polymers is prepared by using phenol?
Which of the following monomers is used in the manufacture of Neoprene rubber?
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 of the following is not a semisynthetic polymer?
The commercial name of polyacrylonitrile is ______.
Which of the following polymer has ester linkage?
Which one of the following polymers are prepared by addition polymerization?
Which of the following polymers is synthesized using a free radical polymerisation technique?
Polymer used in bullet proof glass is ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Name the compound which reacts with formaldehyde to produce ethyl alcohol.
Write the preparation of viscose rayon.
Name and draw structure of the repeating unit in natural rubber.
Another name of terylene is ______.
Write the structure and name of the monomer of Nylon-6.
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.
Write the structure of isoprene and the polymer obtained from it.
Identify polyamide polymer from following.
Which from following statements is NOT true regarding neoprene?
