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CBSE Class 11-science Answered

how is bauxite purified by halls method?
Asked by | 28 Feb, 2008, 09:32: AM
Expert Answer

bauxite is dissolved in NaOH impurities donot dissolve and are separated. sodium aluminate is hydrlysed to get aluminium hydroxide which gives Al2O3. this process is called leaching.

Answered by | 02 Mar, 2008, 08:11: PM
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