How is the theory of complexes used to sperate Fe_2O_3 and Al_2O_3 ? – InterviewSolution

1.	How is the theory of complexes used to sperate Fe_2O_3 and Al_2O_3 ?
Answer» Solution :`Al_2O_3` is separated from `Fe_2O_3` USING AQUEOUS caustic SODA. `Al_2O_3` acts as acid to NAOH and forms a soluble complex. `Fe_2O_3` acts as a base and is insoluble, which is separated by filtration. `Al_2O_3 + NaOH to Na[Al(OH)_4(H_2O)_2]`

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