Advertisements
Advertisements
प्रश्न
Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.
Advertisements
उत्तर
Urea-formaldehyde resin is used in laminated sheets. For the formation of laminated sheets, urea and formaldehyde are the monomeric units.
APPEARS IN
संबंधित प्रश्न
Explain the following term: Homopolymers
Write the formulae of the raw materials used for preparation of Dextran.
Attempt the following:
Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N
Mention two uses of LDP.
Explain the reactions involved in the preparation of viscose rayon.
Select the CORRECT match for both the polymers.
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 products is formed when benzaldehyde is treated with CH3MgBr and the addition product so obtained is subjected to acid hydrolysis?
Trans - form of poly isoprene is:-
Which of the following is an example of polyester?
Nylon threads are made of ______.
Which of the foolowing polymer is used in the manufacture of insulators.
Name and draw the structure of the repeating unit in natural rubber.
Name the compound which reacts with formaldehyde to produce ethyl alcohol.
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 |
Write the structure of isoprene and the polymer obtained from it.
Name and draw the structure of the repeating unit in natural rubber.
