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PART - 2 CH - 7 Redox Reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryPART - 2 CH - 7 Redox Reactions1 Mark
Question
The average oxidation number of Fe in $Fe _3 O _4$ is .............
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Answer

$8 / 3$

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