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प्रश्न
Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
(d) Formaldehyde and benzyl alcohol
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उत्तर
(c) Formaldehyde and phenol
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संबंधित प्रश्न
Write any ‘two’ uses of terylene.
Write the formulae of the raw materials used for preparation of Dextran.
Write the structures of the monomers used for getting the following polymers
Melamine – formaldehyde polymer
Answer the following in one sentence.
Identify 'A' in the following reaction:
Answer the following in one sentence.
Identify thermoplastic and thermosetting plastic from the following:
- PET
- Urea formaldehyde resin
- Polythene
- Phenol formaldehyde resin
Draw the structures of polymers formed from the following monomers
\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]
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.
-(CO(CH2)4 - CONH(CH2)6NH-)n
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________
Monomer used for preparation of polyacrylonitrile is _____________
write the structure of the monomer used in natural rubber.
Write chemical reaction for preparation of the following.
Neoprene
Write two uses and two properties of polythene.
Which of the following is used as a substitute for wool?
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
Which among the following polymers is obtained from styrene and 1-3-butadiene?
Which of the following polymer is used in paints?
How many isoprene units are present in abscisic acid?
The INCORRECT match for the polymer with its application is:
Select the CORRECT match for both the polymers.
\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]
Which of the following is CORRECT about polymer 'X'?
Which of the following polymers is obtained from chloroprene?
Novolac is obtained from ____________.
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which among the following polymers is obtained from CH2 = CH – CN by polymerisation?
Identify the catalyst used in the manufacture of high density polythene.
Which of the following polymers is prepared by using phenol?
Which among the following polymers is used to manufacture chemical containers?
Identify addition polymer from the following.
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 is not a semisynthetic polymer?
The commercial name of polyacrylonitrile is ______.
Phenol and formaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B). Name the polymers. Write the reactions involved in the formation of (A). What is the structural difference between two polymers?
Which of the following is not a copolymer?
Nylon threads are made of ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Which of the foolowing polymer is used in the manufacture of insulators.
Answer the following.
Name and draw structure of the repeating unit in natural rubber.
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.
Write the structure of isoprene and the polymer obtained from it.
Name the compound which reacts with formaldehyde to produce ethyl alcohol.
Write the name of the monomer of natural rubber.
Another name of terylene is ______.
The monomer used in preparation of teflon is ______.
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.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Which from following statements is NOT true regarding neoprene?
Which among the following is a monomer of natural rubber?
