Question

why bauxite is used in the preparation of aluminium

Answer 1

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Bauxite is used in the preparation of Aluminium because It is a principle ore of Aluminium. The first step in producing aluminum is to crush thebauxite and purify it using the Bayer Process.
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Answer 2

$\bf\huge\color{red}{ANSWER}$

For the leaching of Aluminium ore , Bauxite is while the preparation of aluminium and is the Bauxite is the principal ore of aluminum.

The first step in producing aluminum is to crush the bauxite and purify it using the Bayer Process. In the Bayer Process, the bauxite is washed in a hot solution of sodium hydroxide, which leaches aluminum from the bauxite.

The aluminum is precipitated out of solution in the form of aluminum hydroxide, Al(OH)3.

The aluminum hydroxide is then calcined to form alumina, Al2O3.