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प्रश्न
Answer the following in one sentence.
Identify 'A' in the following reaction:
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उत्तर
Polymer ‘A’ is:
APPEARS IN
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 structure of melamine.
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 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.
-(CO(CH2)4 - CONH(CH2)6NH-)n
Identify condensation polymers and addition polymers from the following.
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Attempt the following:
Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N
Answer the following.
Write main specialities of Buna-S, Neoprene rubber?
Write the structure of isoprene and the polymer obtained from it.
Write the name of the catalyst used for preparation of high density polythene polymer.
Monomer used for preparation of polyacrylonitrile is _____________
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
Mention two uses of LDP.
Write the name of one example of each polymer in which following repeating units.
\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]
Write the name and formulae of the monomers used for the preparation of dacron.
Which of the following is used as a substitute for wool?
Which among the following polymers is obtained from styrene and 1-3-butadiene?
Which of the following polymer is used in paints?
The INCORRECT match for the polymer with its application is:
Which of the following is the monomer of neoprene?
Novolac is obtained from ____________.
Identify the catalyst used in the manufacture of high density polythene.
Which among the following monomers is used to prepare Teflon?
Which of the following pair of compounds is used as monomers for bakelite?
Which of the following is not a semisynthetic polymer?
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 |
Match the polymers given in Column I with their repeating units given in Column II.
| Column I | Column II |
| (i) Acrilan |
(a) \[\begin{array}{cc} |
| (ii) Polystyrene | (b) \[\begin{array}{cc} \ce{Cl}\phantom{.......}\\ |\phantom{........}\\ \phantom{}\ce{-(CH2 - C = CH - CH2)\underset{n}{-}} \end{array}\] |
| (iii) Neoprene | (c) \[\begin{array}{cc} \phantom{................................}\ce{CN}\\ \phantom{..............................}|\\ \ce{-(CH2 - CH = CH - CH2 - CH2 - CH)\underset{n}{-}} \end{array}\] |
| (iv) Novolac | (d) \[\begin{array}{cc} \ce{-(CH2 - CH)\underset{n}{-}}\\ \phantom{.....}|\\ \phantom{.......}\ce{CN} \end{array}\] |
| (v) Buna—N | (e)  |
| (f) \[\begin{array}{cc} \ce{-(CH2 - CH)\underset{n}{-}}\\ \phantom{.....}|\\ \phantom{......}\ce{Cl} \end{array}\] |
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?
The monomer of Teflon is ______.
Which of the following polymer has ester linkage?
Which of the following is a polymer of enzyme?
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.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Write the name of the monomer of natural rubber.
Another name of terylene is ______.
Name and draw 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.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Name and draw 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.
Write the structure of isoprene and the polymer obtained from it.
Which from following statements is NOT true regarding neoprene?
