31. The element used in the manufacture of safety matches is A.Phosphorous B.Magnesium C.Silicon D.Sulphur
Answer: Option A Solution: One end of a match is coated with a material that can be ignited by frictional heat generated by striking the match against a suitable surface. The coated end of a match, known as the match "head," contains either phosphorus or phosphorus sesquisulfide as the active ingredient and gelatin as a binder.
