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Oxidation numbers are assigned according to a set of:
ATastes
BRules
CGuesses
DColours
Answer & Solution
Correct answer: B. Rules
1. The number cannot be read off directly.
2. A fixed procedure is used instead.
3. It is ascertained according to a set of rules.
_Source: NCERT Class 11 Chemistry Part II, Unit 8, Redox Reactions._
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