(D) Natural rubber is a linear polymer of isoprene ($2-$methyl-$1, 3-$butadiene) and has a $cis-$configuration at every double bond. Therefore,the sta

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Natural rubber has a trans configuration at every double bond.

(D) Natural rubber is a linear polymer of isoprene ($2-$methyl-$1, 3-$butadiene) and has a $cis-$configuration at every double bond. Therefore,the statement that it has a trans configuration is incorrect.

Class 12 Chemistry Polymers Composition, Properties and Uses of Polymer

Medium

Which of the following statements is not correct?

A
Buna-$S$ is a copolymer of butadiene and styrene.
B
Natural rubber is a $1, 4-$polymer of isoprene.
C
In the vulcanization process,sulfur forms cross-links between chains,making rubber hard and strong.
D
Natural rubber has a trans configuration at every double bond.