Chemistry - Redox Reactions Question with Solution | TestHub

$\mathrm{H}\mathrm{N}{\mathrm{O}}_2$can act both as a reducing agent and as an oxidising agent but$\mathrm{H}\mathrm{N}{\mathrm{O}}_3$acts only as an oxidising agent.

The oxidation number of phosphorus can vary from$-\mathrm{3 }\mathrm{t}\mathrm{o }+5$.

The reaction between$\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}$and${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$is a redox reaction.

Oxidation number can have positive, negative, zero values.