a2zinterviews

71.	Broken glass that is used in the manufacture of glass is called
	A.  Cullet
	B.  Waste glass
	C.  Raw material
	D.  Batch

72.	Camphor can easily be purified by the process of
	A.  Sublimation
	B.  Distillation
	C.  Crystallization
	D.  Sedimentation

73.	The National Chemical Laboratory(India) is located in
	A.  Mumbai
	B.  Bengaluru
	C.  Hyderabad
	D.  Pune

74.	Which one of the following contains maximum percentage of nitrogen by mass?
	A.  Urea
	B.  Ammonium cyanide
	C.  Ammonium carbonate
	D.  Ammonium nitrate

75.	Quick silver is another name for
	A.  Silver
	B.  Mercury
	C.  Aluminium
	D.  Copper