an ore concentrated by leaching followed by electolytic reduction. name the ore. write the steps including reaction of its reduction process?
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The one is aluminum oxide. Leaching is a process in which ore is treated with suitable reagent which reacts with ore but not impurities. Metal compound is changed into purified ore .
Al2O3 +2NaOH --> 2NaAlO2 + H2O
NaAlO2 + 2H2O --> Al(OH)3 + NaOH
2Al(OH)3 -->(heat) Al2O3 + H2O
Al2O3 +2NaOH --> 2NaAlO2 + H2O
NaAlO2 + 2H2O --> Al(OH)3 + NaOH
2Al(OH)3 -->(heat) Al2O3 + H2O
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