40. PVC is obtained by the polymerisation of A.Propane B.Vinyl chloride C.Styrene D.Acetylene
Answer: Option B Solution: PVC, in full polyvinyl chloride, a synthetic resin made from the polymerization of vinyl chloride. Second only to polyethylene among the plastics in production and consumption, PVC is used in an enormous range of domestic and industrial products, from raincoats and shower curtains to window frames and indoor plumbing.