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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:
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संबंधित प्रश्न
Write the reactions involved in the preparation of PVC
Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
(d) Formaldehyde and benzyl alcohol
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
Draw the structures of veronal and thymine.
Answer the following in one sentence.
Define the term: Vulcanization
Answer the following in one sentence.
What type of intermolecular force leads to high-density polymer?
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 Terylene.
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
Identify condensation polymers and addition polymers from the following.
-(CH2 - CH = CH - CH2 -)n
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Write the reaction involved in the formation of bakelite.
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.
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
Monomer of natural rubber is __________
Write preparation of low density polythene.
Mention two uses of LDP.
Write chemical reaction for preparation of the following.
Buna-S
Write two uses and two properties of polythene.
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?
\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]
Which of the following is CORRECT about polymer 'X'?
Which among the following catalysts is used in the preparation of dacron?
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 monomers is used in the manufacture of Neoprene rubber?
Which of the following polymer is used to make blankets?
Which among the following is an example of addition polymer?
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?
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 of the following is an example of polyester?
Which of the following polymers is synthesized using a free radical polymerisation technique?
Nylon threads are made of ______.
Polymer used in bullet proof glass is ______.
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.
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.
Name and draw structure of the repeating unit in natural rubber.
The monomer used in preparation of teflon is ______.
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.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Which among the following is a monomer of natural rubber?
