Multiple choice general knowledge science & technology

Which ore exists in nature in the hydrated form of the metal?

  1. haematite

  2. carbonate

  3. sulphide

  4. bauxite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bauxite is the correct answer because it is the principal ore of aluminum that exists in hydrated forms in nature. Bauxite contains aluminum hydroxide minerals like gibbsite (Al(OH)3), boehmite (AlO(OH)), and diaspore (AlO(OH)), which are all hydrated forms of aluminum oxide. Haematite (Fe2O3), carbonates, and sulphides are not typically found as hydrated ores.

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