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Bauxite ore consists of Al2O3, SiO2, TiO...

Bauxite ore consists of `Al_2O_3, SiO_2, TiO_2, Fe_2O_3`. This ore is treated with conc. `NaOH` solution at 500 K and 35 bar pressure for a few hours and filtered out. In the filtrate, the species present are

A

`NaAl(OH)_4` only

B

`Na_2 Ti (OH)_6` only

C

`NaAl(OH)_4` and `Na_2SiO_3` both

D

`Na_2SiO_3` only

Text Solution

Verified by Experts

The correct Answer is:
C
`Al_2O_3` and `SiO_2` react with conc. `NaOH `to give `NaAl(OH)_4` and `Na_2SiO_3` respectively.
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