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_(3),O_(3) Cr_(3)+Y(Delta) to Cr (X) and (Y) are :

Answer»

C and Al
AI and C
C in both
Al in both

Solution :`X=C,y=Al`


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