Question

Natural rubber is a polymer of ______.

Options

• trans isoprene

• cis isoprene

• cis and trans isoprene

• none of the above.

Answer 1

Natural rubber is a polymer of cis isoprene.

Explanation:

Natural rubber is a polymer of cis-1, 4-isoprene units. In natural rubber, the isoprene molecules are joined in cis configuration, which gives rubber its elasticity and flexibility. The polymer formed is called cis-polyisoprene.