Question

Match the polymer in Column I with correct monomers of Column II.

	Column I		Column II
$\left(i\right)$	High Density polythene	(a)	Isoprene
$\left(ii\right)$	Neoprene	(b)	Tetraflouroethene
$\left(iii\right)$	Natural Rubber	(c)	Chloroprene
$\left(iv\right)$	Teflon	(d)	Acryolonitrile
$\left(v\right)$	Acrilan	(e)	Ethene

Answer 1

Part (i):

High-density polythene is formed when the addition polymerisation of ethene takes place in the presence of catalysts such as Zieglar-natta catalyst at a temperature of $333k\text{to}343K$ under a pressure of $6-7$ atmospheres.

Monomer of HDPE: Ethene

(i)

High Density Polythene

(e)

Ethene

Part(ii):

Neoprene is formed by the free radical polymerisation of chloroprene.

Monomer of Neoprene: 2-Chlorobuta-1,3-diene

(ii)

Neoprene

(c)

Chloroprene

Part(iii):

Natural rubber is a linear polymer of isoprene (2-Methyl-1,3-butadiene).

Monomer of Natural rubber: Isoprene

(iii)

Natural Rubber

(a)

Isoprene

Part(iv):

Teflon is formed by heating tetrafluoroethene with a free radical or persulphate catalyst at high pressures.

Monomer of Teflon: $C{F}_2=C{F}_2$

(iv)

Teflon

(b)

Tetraflouroethane

Part(v):

Acrilan is an addition polymer made from the monomer named acrylonitrile. Monomer of Acrilan: Propanenitrile

(v)

Acrilan

(d)

Acrylonitrile

Correct Match

	Column I		Column II
(i)	High density polythene	(e)	Ethene
(ii)	Neoprene	(c)	Chloroprene
(iii)	Natural rubber	(a)	Isoprene
(iv)	Teflon	(b)	Tetrafluoroethene
(v)	Acrilan	(e)	Acrylonitrile