`FeCr_(2)O_(4)+NaOH+"air" to (A)+Fe_(2)O_(3)` `(A)+(B) to Na_(2)Cr_(2)O_(7)` `Na_(2)Cr_(2)O_(7)+X overset(Delta)to Cr_(2)O_(3)` `Cr_(2)O_(3)+Y overset(Delta)to Cr` (X) and (Y) are :A. Dissolving in conc ,`H_(2)SO_(4)`B. Dissolving in `NH_(3)`C. Dissolving in `H_(2)O`D. Dissolving in dil,HCl

`FeCr_(2)O_(4)+NaOH+"air" to (A)+Fe_(2)O_(3)` `(A)+(B) to Na_(2)Cr_(2)

1.	`FeCr_(2)O_(4)+NaOH+"air" to (A)+Fe_(2)O_(3)` `(A)+(B) to Na_(2)Cr_(2)O_(7)` `Na_(2)Cr_(2)O_(7)+X overset(Delta)to Cr_(2)O_(3)` `Cr_(2)O_(3)+Y overset(Delta)to Cr` (X) and (Y) are :A. Dissolving in conc ,`H_(2)SO_(4)`B. Dissolving in `NH_(3)`C. Dissolving in `H_(2)O`D. Dissolving in dil,HCl
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`FeCr_(2)O_(4)+NaOH+"air" to (A)+Fe_(2)O_(3)` `(A)+(B) to Na_(2)Cr_(2)O_(7)` `Na_(2)Cr_(2)O_(7)+X overset(Delta)to Cr_(2)O_(3)` `Cr_(2)O_(3)+Y overset(Delta)to Cr` (X) and (Y) are :A. Dissolving in conc ,`H_(2)SO_(4)`B. Dissolving in `NH_(3)`C. Dissolving in `H_(2)O`D. Dissolving in dil,HCl

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