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NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY
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Iron forms two oxides. If for the same mass of iron, the mass of oxygen combined in the first oxide is two-third of the mass of oxygen combined in the second oxide, then the ratio of valency of iron in first and second oxide is
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Correct option: B
Option B () is correct because the ratio of valencies is inversely proportional to the ratio of oxygen masses combined with the same mass of iron.
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