The process in which sulphur is extracted is
Haber process
Killin's process
Frasch process
Hall's Process
Galena is
Zns
Pbs
CuFeS2
TnS
Gypsum is
CaSO42H2O
2CaSO4H2O
CaSO4
CaCl2
The process used for the manufactures of ammonia.
Koop's process
Haber Process
Hallis Process
Van Arkel process
The barium meal which is taken before an X - ray contains the salt
BaH2
BaO2
BaSO4
Ba(OH)2
