CBSE Class 11-science Answered
how is bauxite purified by halls method?
Asked by | 28 Feb, 2008, 09:32: AM
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
CBSE 11-science - Chemistry
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