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प्रश्न
Write the structure of melamine.
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उत्तर
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संबंधित प्रश्न
Write any ‘two’ uses of terylene.
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.
What type of intermolecular force leads to high-density polymer?
Answer the following.
Write the reaction of the formation of Nylon 6.
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
Write the reaction involved in the formation of bakelite.
Attempt the following:
What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.
Answer the following.
Write main specialities of Buna-S, Neoprene rubber?
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
Write a chemical reaction for the preparation of the following polymer.
polyacrylonitrile
Mention two uses of LDP.
Write the name of one example of each polymer in which following repeating units.
\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]
Explain vulcanization of rubber.
Explain the reactions involved in the preparation of viscose rayon.
How many isoprene units are present in abscisic acid?
Identify the INCORRECT match.
Select the CORRECT match for both the polymers.
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which of the following compounds is used to prepare orlon?
Identify the monomers used in the preparation of Novolac.
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 pair of compounds is used as monomers for bakelite?
Which among the following is an example of addition polymer?
Which of the following polymers, need atleast one diene monomer for their preparation?
(i) Dacron
(ii) Buna-S
(iii) Neoprene
(iv) Novolac
Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.
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 products is formed when benzaldehyde is treated with CH3MgBr and the addition product so obtained is subjected to acid hydrolysis?
The monomer of Teflon is ______.
Trans - form of poly isoprene is:-
Nylon threads are made of ______.
Polymer used in bullet proof glass is ______.
The catalyst used for the polymerisation of olefins is ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Identify the monomer used to prepare neoprene.
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 the compound which reacts with formaldehyde to produce ethyl alcohol.
Name and draw structure of the repeating unit in natural rubber.
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 |
The monomer used in preparation of teflon is ______.
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.
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.
Name and draw structure of the repeating unit in natural rubber.
