# What are some examples of oxidizing agents?

Dec 21, 2016

$\text{Difluorine, dioxygen, permanganate ion, dichromate ion, sulfur...}$

#### Explanation:

Both $\text{difluorine, and dioxygen}$ are potent oxidizing agents, and readily accept electrons to give ${F}^{-}$ and ${O}^{2 -}$ ions.

Typical inorganic oxidizing agents are $\text{potassium permanganate,}$ $K M n {O}_{4}$, and $\text{potassium dichromate,}$ ${K}_{2} C {r}_{2} {O}_{7}$.

The strongly coloured $K M n {O}_{4}$ (deep crimson) is reduced to almost colourless $M {n}^{2 +}$:

$M n {O}_{4}^{-} + 8 {H}^{+} + 5 {e}^{-} \rightarrow M {n}^{2 +} + 4 {H}_{2} O$

Orange dichromate is reduced to green $C {r}^{3 +}$ ion:

$C {r}_{2} {O}_{7}^{2 -} + 14 {H}^{+} + 6 {e}^{-} \rightarrow 2 C {r}^{3 +} + 7 {H}_{2} O$

Both colour changes allow vizualization of the stoichiometric endpoints in titrations.