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FeCr(2)O(4)+NaOH+"air" to (A)+Fe(2)O(3)(...

`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_(3),O_(3) Cr_(3)+Y(Delta) to Cr`
`Na_(2)CrO_(4) and Fe_(2)O_(3)` are separated by :

A

dissolving in conc `H_(2)SO_(4)`

B

dissolving in `NH_(3)`

C

dissolving in `H_(2)O`

D

dissolving in dil. HCl

Text Solution

Verified by Experts

The correct Answer is:
C
`Na_(2)Cr_(2)O_(7)` solubel in `H_(2)O` but `Fe_(2)O_(3)` is insoluble in `H_(2)O`
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