Ore of aluminium (metallurgy): Identify the most important commercial ore of aluminium used for metal extraction. Select the widely occurring hydrated oxide ore. Choose the correct option.

Q: Ore of aluminium (metallurgy): Identify the most important commercial ore of aluminium used for metal extraction. Select the widely occurring hydrated oxide ore. Choose the correct option.

Concept/Approach Aluminium is primarily extracted from bauxite (hydrated aluminium oxides) via the Bayer and Hall–Héroult processes. Magnetite/haematite are iron ores; monazite is a phosphate containing rare earths/thorium. Final Answer Bauxite

Difficulty: Easy

Bauxite
Magnetite
Haematite
Monazite

Correct Answer: Bauxite

Explanation:

Concept/Approach
Aluminium is primarily extracted from bauxite (hydrated aluminium oxides) via the Bayer and Hall–Héroult processes. Magnetite/haematite are iron ores; monazite is a phosphate containing rare earths/thorium.

Final Answer
Bauxite

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