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JEE Main levelSingle correct optionDifficulty 2 of 3pl078

Natural rubber and gutta-percha are both polymers of isoprene. They differ in that

Anatural rubber has all trans double bonds, and gutta-percha has all cis double bonds
Bnatural rubber has all cis double bonds, and gutta-percha has all trans double bonds
Cnatural rubber is a copolymer and gutta-percha is a homopolymer
Dnatural rubber is formed from buta-1,3-diene and gutta-percha from isoprene

Answer: B

Both are 1,4-polyisoprene. Natural rubber is the cis isomer and gutta-percha is the trans isomer.

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