IntheextractionofAl,impurealuminaisdissolvedin conc. NaOH toformsodium – InterviewSolution

1.	IntheextractionofAl,impurealuminaisdissolvedin conc. NaOH toformsodiumtoformsodiumaluminateandleavingimpuritiesbehind. Whatis the name of thisprocess ?
Answer» Solution : ` UNDERSET ("Alumina")(Al_2O_3) +underset ("(conc.)")(2NaOH) +3 H_2Oto underset ("Sod.Metaluminate") (2Na[AL(OH)_4] ` Thisprocessiscalledleaching.

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