Single Choice

cis-Polyisoprene possesses elastic property because:

Ait is soft and soluble in non-polar solvent
Bit is unsaturated and porous
Cit has a coiled structure and chains held together by weak van der Waals forces
Correct Answer
Dit has a fibrous structure and reactive sites at various double bonds

Solution

Properties of elastomers-
These are rubber-like solids with elastic properties,
The polymer chains are held together by the weakest intermolecular forces that permit the polymer to be stretched,
A few ‘crosslinks’ are introduced in between the chains, which help the polymer to retract to its original position
Example= Cis-polyisoprene, the correct option is [C].

SIMILAR QUESTIONS

Polymers

The copolymer formed by addition polymerization of styrene and acrylonitrile in the presence of peroxide is:

Polymers

Which of the following polymers is not correctly matched?

Polymers

Which of the following is an addition polymer?

Polymers

(MCPB meta -chloro perbenzoic acid) stereochemistry of the product of the above reaction is :

Polymers

Name the type of polymerisation (addition or condensation) and name the monomers in polyethylene.

Polymers

(i) Arrange the following compounds in the ascending order of their basic strength and give reasons for your answer: Methylamine, Aniline, Ethylamine, Diethyl ether (ii) Name the monomers and the type of polymerization in each of the folloiwng polymers: (a) Polyester (b) Bakelite

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