Hydrogen combined with a nonmetal is normally assigned an oxidation number of:
APlus four
BPlus five
CPlus nine
DPlus one
Answer & Solution
Correct answer: D. Plus one
1. A nonmetal partner pulls the shared electrons away from hydrogen.
2. Hydrogen is left with one electron less than neutral.
3. So its oxidation number is plus one.
_Source: OpenStax Chemistry 2e, Chapter 4, Stoichiometry of Chemical Reactions._
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