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प्रश्न
Write the structure of melamine.
उत्तर
The structure of melamine:
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संबंधित प्रश्न
Explain the following term: Homopolymers
Based on molecular forces, what type of polymer is neoprene?
Write the structures of the monomers used for getting the following polymers
Melamine – formaldehyde polymer
Draw the structures of veronal and thymine.
Choose the correct option from the given alternatives.
Which of the following is made up of polyamides?
Answer the following in one sentence.
Identify thermoplastic and thermosetting plastic from the following:
- PET
- Urea formaldehyde resin
- Polythene
- Phenol formaldehyde resin
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.
\[\begin{array}{cc}\ce{- C - O -}\\||\phantom{.....}\\
\ce{O\phantom{.....}}\end{array}\]
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
Answer the following.
Write name and formula of raw material from which bakelite is made.
Answer the following.
Is synthetic rubber better than natural rubber? If so, in what respect?
Answer the following.
Write main specialities of Buna-S, Neoprene rubber?
Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
Monomer of natural rubber is __________
Write a chemical reaction for the preparation of the following polymer.
polyacrylonitrile
Write preparation of low density polythene.
Write chemical reactions for the preparation of high-density polythene.
Explain the reactions involved in the preparation of viscose rayon.
Which among the following polymers is obtained from styrene and 1-3-butadiene?
How many isoprene units are present in abscisic acid?
Identify the INCORRECT match.
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which of the following catalysts is used in preparation of terylene?
Which among the following polymers is obtained from CH2 = CH – CN by polymerisation?
Identify the monomers used in the preparation of Novolac.
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 of the following polymers is used as insulation for cables?
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?
Which one of the following polymers are prepared by addition polymerization?
Which of the following is an example of polyester?
Nylon threads are made of ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Which among the following polymers has high tensile strength and is used to obtain tyre cords?
Which of the foolowing polymer is used in the manufacture of insulators.
The monomer of natural rubber is ______.
Name and draw the structure of the repeating unit in natural rubber.
Write the preparation of viscose rayon.
Write the structure of isoprene and the polymer obtained from it.
Name and draw the structure of the repeating unit in natural rubber.
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 structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
