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Which one of the following statements is not true?
(a)Buna-S is a copolymer of butadiene and styrene
(b)Natural rubber is a 1, 4-polymer of isoprene
(c)In vulcanization, the formation of sulphur bridges between different chains make rubber harder and stronger
(d)Natural rubber has the trans configuration at every double bond

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Important Questions on Introduction to Polymer Chemistry
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Reason: Mechanical and aesthetic properties of cellulose can be improved by acetylation.

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List - | List - | ||
Addition polymer | Bakelite | ||
Condensation polymer | -methyl- -butadiene | ||
Acrilan | -dimethyl- -butadiene | ||
Rubber | Vinyl cyanide | ||
Polythene |
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