In the leaching method, bauxite ore is digested with a concentrated solution of NaOH that produces ' X '. When CO_2 gas is passed through the aqueous solution of ' X^ , a hydrated compound ' Y^ ' is precipitated. ' X '

Correct answer: D. Na [Al(OH)_4] and Al_2 O_3 · xH_2 O Al_2 O_3(~s)+2 NaOH(aq)+3 H_2 O (l) Alumina

JEE Main 201815 AprilEvening ShiftOnline

JEE Main 2018 · 15 April · Evening Shift · Online · Chemistry · General Principles and Processes of Isolation of Metals

In the leaching method, bauxite ore is digested with a concentrated...

In the leaching method, bauxite ore is digested with a concentrated solution of

\mathrm{NaOH}

that produces '

\mathrm{X}

'. When

\mathrm{CO}_2

gas is passed through the aqueous solution of '

X^{\prime}

, a hydrated compound '

\mathrm{Y}^{\prime}

' is precipitated. '

\mathrm{X}

' and '

\mathrm{Y}

' respectively are. In the leaching method, bauxite ore is digested with a concentrated solution of NaOH that produces ' X '. When CO_2 gas

A\mathrm{Na} $\left[\mathrm{Al}(\mathrm{OH})_4\right]$ and $\mathrm{Al}_2\left(\mathrm{CO}_3\right)_3 \cdot \mathrm{xH}_2 \mathrm{O}$
B $\mathrm{Al}(\mathrm{OH})_3$ and $\mathrm{Al}_2 \mathrm{O}_3 \cdot \mathrm{xH}_2 \mathrm{O}$
C $\mathrm{NaAlO}_2$ and $\mathrm{Al}_2\left(\mathrm{CO}_3\right)_3 \cdot \mathrm{xH}_2 \mathrm{O}$
D\mathrm{Na} $\left[\mathrm{Al}(\mathrm{OH})_4\right]$ and $\mathrm{Al}_2 \mathrm{O}_3 \cdot \mathrm{xH}_2 \mathrm{O}$

D. \mathrm{Na} $\left[\mathrm{Al}(\mathrm{OH})_4\right]$ and $\mathrm{Al}_2 \mathrm{O}_3 \cdot \mathrm{xH}_2 \mathrm{O}$

\mathrm{Al}_2 \mathrm{O}_3(\mathrm{~s})+2 \mathrm{NaOH}(\mathrm{aq})+3 \mathrm{H}_2 \mathrm{O}

(l) Alumina In the leaching method, bauxite ore is digested with a concentrated solution of NaOH that produces ' X '. When CO_2 gas