Question

The oxidation number of hydrogen is $+1$ except in_______.

Answer 1

Oxidation number

• Oxidation number denotes the oxidation state of an element in a compound ascertained according to a set of rules formulated on the basis that electron pair in a covalent bond belongs entirely to a more electronegative element.

The oxidation number of Hydrogen

• The oxidation number of hydrogen is $+1$ except when it is bonded to metals in binary compounds (that is compounds containing two elements).
• For example, in $\mathrm{LiH}$,and $\mathrm{NaH}$ , its oxidation number is $-1$.

The oxidation number of hydrogen is $+1$ except in binary compounds.