MHT CET 2024 Chemistry question

Not in JEE Main or NEET syllabus

Which from following is NOT true about natural rubber?

(A)It is formed by addition polymerisation
(B)It is a linear polymer
(C)It has cis configuration of C=C
(D)It contains butadiene and styrene as monomer unitsCorrect

Answer: (D)

Solution

Natural rubber is cis-1,4-polyisoprene, an addition polymer of the monomer isoprene (2-methylbuta-1,3-diene), \mathrm{n\,CH_2{=}C(CH_3){-}CH{=}CH_2 \to [{-}CH_2{-}C(CH_3){=}CH{-}CH_2{-}]_n}. It is a linear polymer

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Question ID VK-092943