Polymers PYQs - Last 10 Years

Consider the following sequence of reaction
\(2 \mathrm{CH}_3 \mathrm{Cl}+\mathrm{Si} \xrightarrow[573 \mathrm{~K}]{\mathrm{Cu}} X \xrightarrow{\mathrm{H}_2 \mathrm{O}} Y \xrightarrow{\text { Polymerisation }} Z\)
The repeating structural...

Polymer $X$ is an example of polyester and $Y$ is an example of polyamide $X$ and $Y$ are respectively

The polymer chains are held together by hydrogen bonding in a polymer $X$. Polymer $X$ is formed from monomers $Y$ and $Z$. What are $Y$ and $Z$ ?

Neoprene is the polymer of a monomer $X$. IUPAC name of $X$ is

\(\text { Match the following. }\)

The correct answer is

' $X$ ' is a polymer, which is mainly used for making unbreakable cups and laminated sheets. The monomers of ' $X$ ' are

Match the following.






List-I (Monomer/s)

List-II (Name of polymer)







A. CF₂$=$CF₂

I. Neoprene





B. NH₂(CH₂)₆NH₂, HO₂C(CH₂)₄CO₂H

II. Bakelite





C....

The monomer which is present in both bakelite and melamine polymers is

Which one of the following is not an example of condensation polymer?

$\mathbf{Assertion (A)}$ Silicones are used for water proofing of fabrics.
$\mathbf{Reason (R)}$ The repeating unit in silicones is

The correct answer is

Identify the structure of the polymer 'P' formed in the given reaction
Caprolactam $\xrightarrow[\mathrm{H}_2 \mathrm{O}]{533-543 \mathrm{~K}} P$

What are ' $X$ ' and ' $Y$ ' respectively in the following reactions ?

$R$ is one of the monomers for the formation of a polymer called

Ziegler-Natta catalyst is used in the manufacture of

\(\text { Match the following. }\)
$$ \begin{array}{llll} \hline & \text { List-I (Polymer type) } & & \text { List-II (Example) } \\ \hline \text { A. } & \text { Fibre } & \text { I. } & \text { Bakelite } \\ \hline \text { B. } & \text...

A polymer sample contains 3 molecules of molar mass $10^3, 3$ molecules of molar mass 500 and 4 molecules of molar mass 200 . What is it's weight average molecular mass?

Identify the correct statement from the following.
A. Glyptal is made from the monomers ethylene glycol and phthalic acid.
B. Bakelite is used in making electrical switches.
C. Nylon 2-nylon-6 is a biodegradable polymer.

Amongst the following, how many of them come under the category of elastomers?
Natural rubber, polyethene, vulcanized rubber, bakelite, polyvinylchloride, buna-N, nylon-6, neoprene

\(\text { Match the following }\)


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Which one among the following is a semi-synthetic polymer?

\(\text { The structure given below is an example of }\)
I. A condensation and biodegradable polymer.
II. A biodegradable and thermoplastic polymer.
III. A biodegradable and thermosetting polymer.
IV. A polyester and thermoplastic polymer...

Type of reaction involved in the initial step in the formation of bakelite

\(\text { Monomeric units of melamine polymer are }\)

Which of the following vinyl derivatives is the most reactive towards anionic polymerisation?

Which of the following are synthetic rubbers?
(i) Terylene
(ii) Buna-S
(iii) Buna-N
(iv) Neoprene
(v) Polyacrylonitrile