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प्रश्न
The Zieglar-Natta catalyst is used in the preparation of _______.
(A) LDPE
(B) PHBV
(C) PAN
(D) HDPE
उत्तर
HDPE
APPEARS IN
संबंधित प्रश्न
Write any ‘two' uses of terylene.
Write the reactions involved in the preparation of PVC
Based on molecular forces, what type of polymer is neoprene?
Answer the following in one sentence.
Identify 'A' in the following reaction:
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.
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.
Identify condensation polymers and addition polymers from the following.
-(CH2 - CH = CH - CH2 -)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:
What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.
Write the structure of isoprene and the polymer obtained from it.
Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________
Monomer used for preparation of polyacrylonitrile is _____________
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
write the structure of the monomer used in natural rubber.
Write preparation of low density polythene.
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.
Write chemical reactions for the preparation of high-density polythene.
Define rubber.
Explain the reactions involved in the preparation of viscose rayon.
Which of the following is used as a substitute for wool?
The INCORRECT match for the polymer with its application is:
Novolac is obtained from ____________.
Identify the polymer obtained by polymerization of n moles of acrylonitrile.
Which among the following polymers can NOT be remoulded?
Which of the following compounds is used to prepare orlon?
Which among the following catalysts is used in the preparation of dacron?
Which among the following polymers is an example of addition polymer?
Which of the following pair of compounds is used as monomers for bakelite?
The commercial name of polyacrylonitrile is ______.
Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.
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 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?
Polymer used in bullet proof glass is ______.
Which of the following polymer is used for manufacturing of buckets, dustbins, pipes, etc?
Which among the following polymers has high tensile strength and is used to obtain tyre cords?
Identify the monomer used to prepare neoprene.
Which of the following is a polymer of enzyme?
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
Write the preparation of viscose rayon.
Write the structure of isoprene and the polymer obtained from it.
Write the structure and name of monomer of Nylon-6.
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 the structure of the repeating unit in natural rubber.
