(A) Teflon is prepared by the polymerization of tetrafluoroethylene $(CF_2=CF_2)$.The chemical reaction is:$nCF_2=CF_2 \xrightarrow[(NH_4)_2S_2O_8]{\t

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(A) Teflon is prepared by the polymerization of tetrafluoroethylene $(CF_2=CF_2)$.The chemical reaction is:$nCF_2=CF_2 \xrightarrow[(NH_4)_2S_2O_8]{\text{Heat, pressure}} -(CF_2-CF_2)_n-$Here,$C_2F_4$ is the monomeric unit.

Class 12 Chemistry Polymers General methods of preparation and mechanism of polymerisation

Medium

What is the molecular formula of a monomer used for the preparation of Teflon?

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A
$C_2F_4$
B
$C_2H_2$
C
$C_2H_4$
D
$C_2H_3CN$

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Class 12

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Polymers

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General methods of preparation and mechanism of polymerisation

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Which of the following is used in the manufacture of thermosetting plastics?

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Which of the following pairs of monomers is used for the preparation of Dexon?

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Match the polymers given in column $-I$ with the preferred mode of polymerisation followed by their monomers in column $-II$.

Column $-I$ Column $-II$

$A$. Nylon $-6, 6$ $i$. Free radical polymerisation

$B$. $PVC$ $ii$. Ziegler-Natta polymerization or coordination polymerization

$C$. $HDP$ $iii$. Anionic polymerisation

$iv$. Condensation polymerization

Column $-I$	Column $-II$
$A$. Nylon $-6, 6$	$i$. Free radical polymerisation
$B$. $PVC$	$ii$. Ziegler-Natta polymerization or coordination polymerization
$C$. $HDP$	$iii$. Anionic polymerisation
	$iv$. Condensation polymerization