The molecular formula of copper glance is ___________
Cu2S
Cu2O
CuCO3.Cu(OH)2
CuFeS2
____________is the second most abundant metal on the earth crust.
aluminium
iron
copper
zinc
The molecular formula of copper pyrites is ___________
CuCO3. Cu(OH)2
Kaolinite is an important ore of __________
Iron
___________is the most abundant metal.
The molecular formula of calamine is ____________
ZnS
ZnCO3
ZnO
ZnSO4
Bauxite is an important ore of ___________
aluminum
__________are minerals which are viable to be used as sources of a particular metal.
Ores
non-metals
metalloids
semi-metals
Malachite is an ore of __________
Cuprite is an ore of _____________
Copper
