Oxidant is a substance in which the oxidation number of one of the atoms ……………….and reductant is a substacne in which oxidation number of one of atoms ……………..

Which of the following statement is not, correct? : Oxidant is a substance which increases the oxidation number of other substance, Reductant is a substance which decreases the oxidation number of other substance., The oxidation number of oxidant decreases, In oxidation there is decrease in oxidation number.

The oxidation number of metal atom is zero in

The oxidation number of metal atom is (are)zero in :

Determine the oxidation number of all the atoms in KClO_4 .