In zone refining method, the molten zone
Contains impurities
Contains purified metal only
Contains more impurity than the original metal
Moves the either side
Argentite is a mineral of
Potassium
Magnesium
Aluminium
Silver
The chemical composition ' slag ' formed during the smelting process in the extraction of copper is :
Cu2O + FeS
FeSiO3
CuFeS2
Cu2S + FeO
Bessemer converter is used for the preparation of
Pig iron
Steel
Wrought iron
Cast iron
A mixture containing sulphide of copper and iron is called :
Anode mud
Matte
Slag
Which one of the following is malachite ore of copper?
Cu2O
Cu2S
Cu(OH)2 . CuCo3
Bauxite is an ore of :
Iron
Nickel
Copper
The composition of malachite is
CaSO4 2H2o
Ca3(PO4)2
CuCO3. Cu (OH)2
PbSO4
Slag is represented by
Ca SiO3
SiO3
CaO
Ca(OH)2
__________ method is suitable for the purification of Hematite.
Hydraulic washing
Electromagnetic separation
Chemical method
Froth flotation