(B) Buna $-N$ is a synthetic copolymer formed by the polymerization of $1,3-$butadiene and acrylonitrile.Buna $-S$ is a synthetic copolymer formed by

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Buna $-N$ is a copolymer of $1,3-$butadiene and acrylonitrile,while Buna $-S$ is a copolymer of $1,3-$butadiene and styrene.

(B) Buna $-N$ is a synthetic copolymer formed by the polymerization of $1,3-$butadiene and acrylonitrile.Buna $-S$ is a synthetic copolymer formed by the polymerization of $1,3-$butadiene and styrene.

Class 12 Chemistry Polymers Composition, Properties and Uses of Polymer

Medium

Explain the difference between Buna $-N$ and Buna $-S$.

A
Buna $-N$ is a homopolymer,while Buna $-S$ is a copolymer.
B
Buna $-N$ is a copolymer of $1,3-$butadiene and acrylonitrile,while Buna $-S$ is a copolymer of $1,3-$butadiene and styrene.
C
Buna $-N$ is a natural rubber,while Buna $-S$ is a synthetic rubber.
D
Buna $-N$ is used for making tyres,while Buna $-S$ is used for making oil seals.

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Chapter

Polymers

Subtopic

Composition, Properties and Uses of Polymer

Match the polymer in Column-$I$ to the monomer from Column-$II$ and assign the correct code.
Column-$I$ (Polymer) Column-$II$ (Monomer)
$(a)$ Nylon-$6$ $(i)$ Ethylene glycol,terephthalic acid
$(b)$ Dacron $(ii)$ Urea,formaldehyde
$(c)$ Glyptal $(iii)$ Ethylene glycol,phthalic acid
$(d)$ Novolac $(iv)$ Phenol,formaldehyde
$ $ $(v)$ Caprolactam

Code:
$(a) \quad (b) \quad (c) \quad (d)$

Column-$I$ (Polymer)	Column-$II$ (Monomer)
$(a)$ Nylon-$6$	$(i)$ Ethylene glycol,terephthalic acid
$(b)$ Dacron	$(ii)$ Urea,formaldehyde
$(c)$ Glyptal	$(iii)$ Ethylene glycol,phthalic acid
$(d)$ Novolac	$(iv)$ Phenol,formaldehyde
$ $	$(v)$ Caprolactam