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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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