Multiple choice

The most important ore of aluminium is

  1. bauxite

  2. calamine

  3. calcite

  4. galena
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A Correct answer
Explanation

Bauxite is the principal ore of aluminium, containing hydrated aluminium oxides like gibbsite, boehmite, and diaspore. It's the primary commercial source for aluminium extraction through the Bayer process. Bauxite forms through the weathering of aluminium-rich rocks in tropical climates.

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