Question

Natural rubber is

• A. a polymer of 1, 3-butadiene
• B. a polymer of ethylene
• C. a polymer of 2-methyl-l, 3-butadiene
• D. a polymer of styrene

Answer 1

Answer: (C)

a polymer of 2-methyl-l, 3-butadiene

Answer 2

Natural rubber is a polymer of isoprene ( $2$ -methyl-$1, 3$-butadiene).