The most important ore of aluminum is
- ABauxite
- BCalamine
- CCalcite
- DGalena
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (a) Bauxite
Explanation
Bauxite is the chief ore of aluminium (Al), containing minerals like gibbsite, boehmite and diaspore.
Aluminium is the most abundant metal in Earth's crust but, being reactive, never occurs free in nature.
Calamine is an ore of zinc, calcite is CaCO₃, and galena is an ore of lead.