MetallurgyHard

Question

Bauxite is leached with :

Options

A.KCl

B.NaCN

C.NaOH

D.Na₂SO₄

Solution

Al₂O₃ (bauxite) + 2NaOH (aq) + H₂O (l) 2Na[Al(OH)₄] (aq).

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