Fe_2Cr_2O_4 + Na_2CO_3 + O_2 xrightarrow{text | vedclass

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(D) The reaction sequence is as follows:$1$. Fusion of chromite ore $(Fe_2Cr_2O_4)$ with $Na_2CO_3$ and $O_2$ gives sodium chromate $[X]$ ($Na_2CrO_4$

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All of these.

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(D) The reaction sequence is as follows:$1$. Fusion of chromite ore $(Fe_2Cr_2O_4)$ with $Na_2CO_3$ and $O_2$ gives sodium chromate $[X]$ ($Na_2CrO_4$ where $Cr$ is $+6$).$2$. Acidification of $[X]$ gives sodium dichromate $[Y]$ ($Na_2Cr_2O_7$ where $Cr$ is $+6$).$3$. Reaction of $[Y]$ with $H_2O_2$ in acidic medium gives chromium pentoxide $[Z]$ ($CrO_5$ or $CrO(O_2)_2$ where $Cr$ is $+6$).$4$. Statement $A$ is true as $Cr$ is in $+6$ oxidation state in $Na_2CrO_4$,$Na_2Cr_2O_7$,and $CrO_5$.$5$. Statement $B$ is true as $CrO_5$ is a deep blue-violet compound that decomposes rapidly in aqueous solution into $Cr^{3+}$ and $O_2$.$6$. Statement $C$ is true as saturated solution of dichromate $[Y]$ with conc. $H_2SO_4$ yields $CrO_3$ (chromic anhydride),which is a bright orange crystalline solid.

$Fe_2Cr_2O_4 + Na_2CO_3 + O_2$ $\xrightarrow{\text{Fusion}} [X]$ $\xrightarrow[H_2O]{H^{+}} [Y]$ $\xrightarrow{H_2O_2/H^{+}} [Z]$
Which of the following statements is true for the compounds $[X]$,$[Y]$,and $[Z]$?

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$Fe_2Cr_2O_4 + Na_2CO_3 + O_2$ $\xrightarrow{\text{Fusion}} [X]$ $\xrightarrow[H_2O]{H^{+}} [Y]$ $\xrightarrow{H_2O_2/H^{+}} [Z]$Which of the following statements is true for the compounds $[X]$,$[Y]$,and $[Z]$?