The reduction of Zinc oxide is done using
CO2
CO
Coke
Silica
Most abundant metal is
O
C
Fe
Al
In the electrolytic cell for the extraction of Al, the gases formed in anode are
O2 and CO2
CO and CO2
CO and O2
CO2 and N2
In the reduction of molten metal salt, _____ is done .
Pyrolysis
Electrolysis
Distillation
Smelting
Sphalerite is also called
Zincite
Cuprite
Zinc blende
Siderite
In the metallurgy of silver and gold, the leaching agents are
NaCN and O2
NaCN and CO2
KCN and O2
'A' or 'C'
The naturally occuring chemical substances in the earth's crust obtainable by mining are called
Ores
Gangue
Flux
Minerals
The anodes are of impure metal and pure metal are taken as cathode. The technique used here is
Liquation
Electrolytic refining
The method used for the refining of Ti is
Van Arkel method
Mond process
The reduction of Iron oxides takes place in different temperature ranges. It is carried out in
Open Hearth process
Blast furnace
Electrolytic cell
Bessemer convertor
