Question

what do you understand by the term oxidation number

Answer 1

a reaction in which oxidation number increases is oxidation reaction
in which oxidation number decreases is reduction reaction


so oxidation number is a number of chemical combination

Answer 2

Hii.....dear frnd!! here is ur ans

Oxidation Number: A number assigned to an element in chemical combination which represents the number of electrons lost ( or gained, if the number is negative ) by an atom of that element in the compound.

Hope it helps uh!!✌✌