Advertisements
Advertisements
Question
What is the role of silica in the extraction of copper?
Advertisements
Solution
Ores of copper contain iron oxide as impurity. Silica reacts with iron oxide and forms iron silicate, which is removed as slag.
FeO+SiO2→FeSiO3
Iron oxide Silica Iron silicate
(Slag)
APPEARS IN
RELATED QUESTIONS
Write the names and chemical formulae of any one ore of iron.
Out of C and CO, which is a better reducing agent at the lower temperature range in the blast furnace to extract iron from the oxide ore?
In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?
Which form of the iron is the purest form of commercial iron?
The chemical formula of willemite is __
(a) ZnS
(b) ZnCO3
(c) ZnO
(d) Zn2SiO4
Metal which is found in free state is:
The sulphide ore of iron is ____________.
The important ore of iron is:-
Which of the following is not ore of aluminium?
Metal always found in Free State is
