Isolation of Elements

Question

In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is :

Accepted Answer

Option D. In bauxite impurities of Fe₂O₃, TiO₂ and SiO₂ are present, Fe₂O₃ and TiO₂ are basic oxides therefore does not reacts with or dissolve in NaOH whereas SiO₂ is acidic oxide it gets dissolve in NaOH, hence leach out

More on Isolation of Elements

Isolation of Elements

More on Isolation of Elements