Advertisements
Advertisements
प्रश्न
Answer the following in one sentence.
Identify 'A' in the following reaction:
Advertisements
उत्तर
Polymer ‘A’ is:
APPEARS IN
संबंधित प्रश्न
Write the reactions involved in the preparation of PVC
Based on molecular forces, what type of polymer is neoprene?
Write the formulae of the raw materials used for preparation of Dextran.
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 '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.
Match the following pairs:
| Name of polymer | Monomer |
| 1. Teflon | a. CH2 = CH2 |
| 2. PVC | b. CF2 = CF2 |
| 3. Polyester | c. CH2 = CHCl |
| 4. Polythene | d. C6H5OH and HCHO |
| 5. Bakelite | e. Dicarboxylic acid and polyhydoxyglycol |
Answer the following.
Draw the structures of polymers formed from the following monomers
H2N–(CH2)5 – COOH
Name and draw structure of the repeating unit in natural rubber.
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 _____________
Write the name of the catalyst used for preparation of high density polythene polymer.
Monomer used for preparation of polyacrylonitrile is _____________
write the structure of the monomer used in natural rubber.
Mention two uses of LDP.
Write chemical reaction for preparation of the following.
Neoprene
Explain the reactions involved in the preparation of viscose rayon.
Which of the following is used as a substitute for wool?
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
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.
Which of the following is the monomer of neoprene?
Which of the following polymers is a heteropolymer?
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which among the following polymers can NOT be remoulded?
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 of the following polymers is prepared by using phenol?
Identify addition polymer from the following.
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 ______.
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) \[\begin{array}{cc} \ce{-(CH2 - CH)\underset{n}{-}}\\ \phantom{.....}|\\ \phantom{......}\ce{Cl} \end{array}\] |
Which of the following is not a copolymer?
F2C = CF2 is monomer of the polymer -
Which of the following polymer has ester linkage?
Which one of the following polymers are prepared by addition polymerization?
Polymer used in bullet proof glass is ______.
Which of the foolowing polymer is used in the manufacture of insulators.
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.
Another name of terylene is ______.
Name and draw structure of the repeating unit in natural rubber.
Write the structure and name of the monomer of Nylon-6.
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.
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.
Name and draw structure of the repeating unit in natural rubber.
