If it is known that in Fe0.96O, Fe is present in +2 and +3 oxidation state. What is the mole fraction of Fe2+ in the compound ?

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12/25

25/12

1/12

11/12

answer is D.

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Detailed Solution

Charge balance 2x +3 (0.96 - x)-2 =0,2x +2.88 - 3x -2 =00.88 -x =0x=0.88Fraction of Fe+2 =0.88 and Fe+3 =0.12% of Fe+2 =0.880.96×100 =91.6% =1112