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Per NCERT §7.3 (rule 3), the oxidation number of oxygen in OF₂ (oxygen difluoride) is which?
A0
B−1
C−2
D+2
Answer & Solution
Correct answer: D. +2
NCERT §7.3 rule 3: F is always −1; total = 0 ⇒ O = +2. Exception driven by F being more electronegative than O.
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