__ is the most abundant metal in the earth’s crust.
Aluminium is used in making roofing sheets because:
In the extraction iron from haematite, silica or sand, the main impurity in the ore are removed using equation(s):
A.
B. CaO(s) + SiO2 (s) → CaSiO3 (s).
C. Fe2 O3 (s) + 3CO(g) → 2Fe(s) + 3CO2 (g).
A and B
In the extraction iron from haematite, the possible reactions involved include:
Titanium is used in the construction of chemical plants and steam turbines because:
