Q.

Bauxite is an alloy of which of the following metals?

A. Aluminium
B. Silver
C. Tin
D. Iron
Answer» A. Aluminium
Explanation: Bauxite is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite Al(OH)3, boehmite, and diaspore, in a mixture with the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase TiO2.
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