What is the oxidation state of hydrogen in and respectively?
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.
Part 1: Calculating the oxidation state of hydrogen in
The oxidation state of Oxygen(O) = -2
Consider the oxidation state of Hydrogen(H) = x
Now,
Hence, the oxidation number of in is .
Part 2: Calculating the oxidation state of hydrogen in
In case of peroxide, The oxidation state of Oxygen(O) = -1
Consider the oxidation state of Hydrogen(H) = x
Now,
Hence, the oxidation number of in is .
Hence, the oxidation state of hydrogen in , and is .