`underset(("Chromite"))(FeO.Cr_(2)O_(3))+Na_(2)CO_(3)+O_(2)overset(Delta)rarr ` `X+Fe_(2)O_(3)+CO_(2)uarr` `Na_(2)CrO_(4)+H_(2)SO_(4)rarrY+Na_(2)SO_(4)+H_(2)O` The oxidation states of `'Cr'` in X,Y respectively.
A
`+3,+6`
B
`+4,+6`
C
`+6,+4`
D
`+6,+6`
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The correct Answer is:
D
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