Polymers MCQ Questions & Answers in Organic Chemistry | Chemistry

Teflon is linear addition polymer of tetrafluoroethene.

No explanation is given for this question. Let's discuss the answer together.

Neoprene (synthetic rubber) is a polymer of chloroprene, i.e. 2-chloro-1, 3-butadiene.

Neoprene is a polymer of chloroprene (2-chloro -1,3-butadiene) and also called homopolymer (addition polymer).

Nylon-6, 6 polymer is formed as

Thus, option (D) is correct.

The repeating unit in natural rubber has the $$cis$$ - configurations with chain extensions on the same side of the ethylene double bond, which is essential for elasticity. If the configuration is trans, the polymer is either a hard plastic or a substance like $$gutta-percha.$$

Natural rubber
All $$cis$$ - configuration

$$SBR$$  is styrene-butadiene rubber, is a synthetic rubber.

Nylon-2-nylon-6
It is an alternating polyamide of glycine ( containing two carbon atoms ) and amino caproic acid or 6-aminohexanoic acid ( containing six carbon atoms ).

It is a biodegradable step-growth copolymer.

$$PMMA$$   and polycarbonate are used in bullet proof glass

Condensation polymers are formed by condensation of diols or diamine with dicarboxylic acids.
Therefore,
$$X$$ may be; \[\overset{\begin{smallmatrix} O \\ \parallel \end{smallmatrix}}{\mathop{-C-}}\,OR\,\,\text{or}\,\,\overset{\begin{smallmatrix} O \\ \parallel \end{smallmatrix}}{\mathop{-C-}}\,N{{H}_{2}}\,\,\text{or}\,\,-C\equiv N\]
\[\begin{align} & \overset{\begin{smallmatrix} O \\ \parallel \end{smallmatrix}}{\mathop{-C-}}\,OR\xrightarrow[\Delta ]{{{H}_{2}}/Ni}-C{{H}_{2}}OH \\ & \overset{\begin{smallmatrix} O \\ \parallel \end{smallmatrix}}{\mathop{-C-}}\,N{{H}_{2}}\xrightarrow{B{{r}_{2}}/NaOH}-N{{H}_{2}} \\ & \overset{\begin{smallmatrix} O \\ \parallel \end{smallmatrix}}{\mathop{-C-}}\,N{{H}_{2}}\xrightarrow[\Delta ]{{{H}_{2}}/Ni}-C{{H}_{2}}-N{{H}_{2}} \\ & -C\equiv N\xrightarrow[\Delta ]{{{H}_{2}}/Ni}-C{{H}_{2}}-N{{H}_{2}} \\ \end{align}\]