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प्रश्न
The Zieglar-Natta catalyst is used in the preparation of _______.
(A) LDPE
(B) PHBV
(C) PAN
(D) HDPE
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उत्तर
HDPE
APPEARS IN
संबंधित प्रश्न
Write the chemical reaction to prepare novolac polymer.
Bakelite is the polymer of:
(a) Benzaldchyde and phenol
(b) Acetaldehyde and phenol
(c) Formaldehyde and phenol
(d) Formaldehyde and benzyl alcohol
Based on molecular forces, what type of polymer is neoprene?
Write the monomers of the following polymer :
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 structure of natural rubber and neoprene rubber along with the name and structure of their monomers.
Draw the structures of polymers formed from the following monomers
\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]
Answer the following.
Write name and formula of raw material from which bakelite is made.
Identify condensation polymers and addition polymers from the following.
-(CO(CH2)4 - CONH(CH2)6NH-)n
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Answer the following.
Write main specialities of Buna-S, Neoprene rubber?
Write the structure of isoprene and the polymer obtained from it.
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 two uses and two properties of polythene.
Define rubber.
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]
Which of the following is CORRECT about polymer 'X'?
Which of the following polymers is a heteropolymer?
Which among the following polymers can NOT be remoulded?
Identify the monomers used in the preparation of Novolac.
Identify the catalyst used in the manufacture of high density polythene.
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 of the following polymer is used to make blankets?
Which among the following is an example of addition polymer?
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?
F2C = CF2 is monomer of the polymer -
Which of the following is an example of polyester?
Which of the following polymers is synthesized using a free radical polymerisation technique?
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
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 the structure of the repeating unit in natural rubber.
Name the compound which reacts with formaldehyde to produce ethyl alcohol.
Write the structure of isoprene and the polymer obtained from it.
Another name of terylene is ______.
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 ______.
Name and draw the structure of the repeating unit in natural rubber.
Name and draw the 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.
Name and draw structure of the repeating unit in natural rubber.
Which from following statements is NOT true regarding neoprene?
