Multiple choice

Which one of the following is the source for the extraction of aluminium?

  1. Hematite

  2. Magnetite

  3. Bauxite

  4. Gypsum

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bauxite is the primary ore of aluminium, containing aluminium hydroxides minerals like gibbsite, boehmite, and diaspore. Hematite and magnetite are iron ores. Gypsum is a calcium sulfate mineral used in cement and plaster, not aluminium extraction.

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