Question

state methord to find oxidation no ?

Answer 1

The oxidation number of a Group 2 element in a compound is +2. The oxidation number of a Group 17 element in a binary compound is -1. The sum of the oxidation numbers of all of the atoms in a neutral compound is 0. The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

Answer 2

Oxidation is a type if process in which oxygen is added and hydrogen is reduced
So, if there is addition of oxygen in any reaction or reduction of hydrogen
So it is said to be asin ixidation reactin