KCET2008ChemistryPolymers
The monomers of buna-S rubber are
Options
- Avinyl chloride and sulphur
- Bbutadiene
- Cstyrene and butadiene
- Disoprene and butadiene
Correct answer
C. styrene and butadiene
Step-by-step solution
Buna-S rubber is also called SBR styrene -butadiene rubber. It is a copolymer of 75 % butadiene ( CH ₂= CH - CH = CH ₂ ) and 25 % styrene ( C ₆ H ₅- CH = CH ₂ ) .