In the extraction of Al, impure Al_(2)O_(3) is dissolved in conc. NaOH – InterviewSolution

1.	In the extraction of Al, impure Al_(2)O_(3) is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?
Answer» Solution :This is called leaching. `Al_(2)O_(3)` dissolves in conc. NAOH to form sodium aluminate. It is FILTERED to remove impurities.

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