The Total solution for NCERT class 6-12
How does the presence of double bonds in rubber moleculesinfluence their structure and reactivity?
Natural rubber is a linear cis-polyisoprenein which the double bonds are present between C2 andC3 of the isoprene units.
Because of this cis-configuration, intermolecularinteractions between the various strands of isoprene are quite weak. As aresult, various strands in natural rubber are arranged randomly. Hence, itshows elasticity.