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प्रश्न
The major ore of aluminium is known as ______.
पर्याय
cinnabar
calamine
bauxite
pyrolusite
MCQ
रिकाम्या जागा भरा
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उत्तर
The major ore of aluminium is known as bauxite.
Explanation:
Bauxite is the primary rock ore used to extract aluminium (Al), mainly consisting of hydrated aluminium oxide (Al2O3.2H2O). The other options are incorrect because cinnabar is the primary ore of mercury, calamine is an ore of zinc, and pyrolusite is an ore of manganese.
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