Which of the following is a natural polymer?
- A
- Bpoly (Butadiene-styrene)
- Cpolybutadiene
- Dpoly (Butadiene-acrylonitrile)
Solution & Step-by-step Explanation

Natural rubber is a linear polymer of isoprene ( -methyl- -butadiene) and is called . The other options are synthetic rubbers (Buna-S, Buna-N).