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Answer the following in one sentence. Identify 'B' in the following reaction: HA2N −(CHA2)A6−NHA2+HOOC−(CHA2)A4−COOH→533KNA2'B'

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प्रश्न

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'

एका वाक्यात उत्तर
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उत्तर

Polymer ‘B’ is:

\[\begin{array}{cc}\ce{\phantom{.......................}O}\phantom{.............}\ce{O}\\\phantom{.......................}||\phantom{.............}||\\
\ce{[- HN - (CH2)6 \underset{\text{Nylon 6,6}}{- NH - C} - (CH2)4 - C -]_{n}}\end{array}\]

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पाठ 15: Introduction to Polymer Chemistry - Exercises [पृष्ठ ३३७]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 15 Introduction to Polymer Chemistry
Exercises | Q 2. i. b. | पृष्ठ ३३७

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write any ‘two’ uses of terylene.


The Zieglar-Natta catalyst is used in the preparation of _______.

(A) LDPE

(B) PHBV

(C) PAN

(D) HDPE


Write the structure of melamine.


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


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.

\[\begin{array}{cc}\ce{-(CH2 - CH -)_{n}}\\
\phantom{....}|\\\ce{\phantom{.......}C6H5}
\end{array}\]


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.


Attempt the following:

Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N


Write the reaction involved in the formation of bakelite.


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


Write preparation of low density polythene.


Write chemical reaction for preparation of the following.

Neoprene


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 chemical reactions for the preparation of high-density 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 among the following polymers is used for making handles of cooker?


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.


Identify the CORRECT statement regarding the following polymer.

\[\begin{array}{cc}
\phantom{....}\ce{O}\phantom{............}\ce{O}\phantom{...................}\ce{H}\phantom{.....}\\
\phantom{....}||\phantom{.............}||\phantom{...................}|\phantom{......}\\
\ce{-[C - (CH2)4 - C - NH - (CH2)6 - N -]_{{n}}}
\end{array}\]


The INCORRECT match for the polymer with its application is:


Identify the INCORRECT match.


Select the CORRECT match for both the polymers.


\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]

Which of the following is CORRECT about polymer 'X'?


Which among the following polymers can NOT be remoulded?


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 polymers is used as insulation for cables?


Which among the following is an example of addition polymer?


Which of the following is not a semisynthetic 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.


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 ______.


Which of the following polymers do not involve cross linkages?


Which among the following polymers has high tensile strength and is used to obtain tyre cords?


Answer the following.

Write the structure of isoprene and the polymer obtained from it.


Answer the following.

Name and draw structure of the repeating unit in natural rubber.


The monomer used in preparation of teflon is ______.


Write the structure of isoprene and the polymer obtained from it.


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.


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.


Identify polyamide polymer from following.


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