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प्रश्न
Aluminium is extracted from its chief ore bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write three balanced equations for the purification of bauxite by Hall's process.
एक पंक्ति में उत्तर
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उत्तर
\[\ce{ Na3AlF6 ⇌ 3Na+ + Al3+ + 6F-}\]
\[\ce{CaF2 ⇌ Ca2+ + 2F-}\]
\[\ce{Al2O3 ⇌ 2Al3+ + 3O^{-}_{2}}\]
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