Question

how to find oxidation number of any element or compound????????
Plz.. answer soon

Answer 1

The oxidation number of a free element is always 0.

The oxidation number of a monatomic ion equals the charge of the ion.

The oxidation number of

H

is +1, but it is -1 in when combined with less electronegative elements.

The oxidation number of

O

in compounds is usually -2, but it is -1 in peroxides.

1.The oxidation number of a Group 1 element in a compound is +1.

2.The oxidation number of a Group 2 element in a compound is +2.

3.The oxidation number of a Group 17 element in a binary compound is -1.

4.The sum of the oxidation numbers of all of the atoms in a neutral compound is 0.