How is pure alumina obtained from bauxite by leaching process. – InterviewSolution

1.	How is pure alumina obtained from bauxite by leaching process.
Answer» Solution :` Al_(2)O_(3)+ 2NaOH + 3H_(2)OTO 2NA[Al(OH)_(4)]` `2NaAl(OH)_(4) +CO_(2) to A1_(2)O_(3), xH_(2)O+ 2NaHCO_(3)`. `Al_(2)O_(3), xH_(2)tounderset(1470K)(Al_(2)O_(3)+xH_(2)O`

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