1.

Natural rubber is a polymer ofA. ethyneB. butadieneC. styreneD. isoprene

Answer» Correct Answer - D
Natural rubber is a linear is a linear polymer of isoprene (2-mathylbuta-1,3 diene):
`nCH_(2)=underset(CH_(3))underset(|)(C)-CH=CH_(2)rarr[CH_(2)-underset(CH_(3))underset(|)(C)=CH-CH_(2)]_(n)`


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