Match the following: (a) Polyacrylonitrile (i) Terylene (b) 1 , 3 - Butadien-Acrylonitrile (ii) Natural Rubber (c) Ethylene glycol-Terepthalic acid (iii) Buna - N (d) cis - 1 , 4 - polyisoprene (vi) Acrilan

The addition polymerisation of acrylonitrile in presence of a peroxide catalyst leads to the formation of polyacrylonitrile. Polyacrolinitrile is also called as Acrilan. Buna - N is obtained by the copolymerisation of 1 , 3 – butadiene and acrylonitrile in the presence of a peroxide catalyst. Hence, Buna - N is also known as 1 , 3 - Butadien-Acrylonitrile. Terylene or dacron is formed by the condensation polymerisation of ethylene glycol and terephthalic acid. Terylene is also known as Ethylene glycol-Terepthalic acid. Natural rubber may be considered as a linear polymer of isoprene ( 2 - methyl - 1 , 3 - butadiene) and is also called as cis - 1 , 4 - polyisoprene. (a) Polyacrylonitrile (vi) Acrilan (b) 1 , 3 - Butadien-Acrylonitrile (iii) Buna - N (c) Ethylene glycol-Terepthalic acid (i) Terylene (d) cis - 1 , 4 - polyisoprene (ii) Natural Rubber

The correct match between item - I and item - II is : Item - I Item - II (a) Natural rubber (I) 1, 3-butadiene + styrene (b) Neoprene (II) 1, 3-butadiene (c) Buna-N (III) chloroprene (d) Buna-S (IV) Isoprene

(a)-(IV), (b)-(III), (c)-(II), (d)-(I)

(a)-(III), (b)-(IV), (c)-(I), (d)-(II)

(a)-(III), (b)-(IV), (c)-(II), (d)-(I)

(a)-(IV), (b)-(III), (c)-(I), (d)-(II)

Alternate cis - and trans - configuration

Random cis - and trans - configuration

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Monomer of natural rubber is

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Important Questions on Polymers

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Which one of the following statements is not correct?

HARD

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

On complete hydrogenation, natural rubber produces

MEDIUM

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Which of the following monomers is used in manufacture of Neoprene rubber?

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

In polymer Buna-

S :' S'

stands for:

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Natural rubber is a polymer of

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Which one of the following monomer is used to prepare Neoprene?

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Neoprene is a

EASY

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Chloroprene is used as a repeating unit for which of the following polymer.

MEDIUM

Chemistry>Organic Chemistry>Polymers>Natural and Synthetic Rubbers

Match the following:

(a) Polyacrylonitrile	(i) Terylene
(b) $1, 3 -$ Butadien-Acrylonitrile	(ii) Natural Rubber
(c) Ethylene glycol-Terepthalic acid	(iii) Buna $- N$
(d) cis $- 1, 4 -$ polyisoprene	(vi) Acrilan