CH-730

Oxidation states

Chemistry · Secondary 3 · Hard · Oxidation states

The equation for a reaction is

2\text{NO}_2 \rightarrow 2\text{NO} + \text{O}_2

. Using oxidation states, which species is reduced?

$\text{NO}_2$ is reduced to NO.
NO is reduced to $\text{NO}_2$ .
$\text{O}_2$ is reduced to $\text{NO}_2$ .
Both NO and $\text{O}_2$ are reduced.

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