Question

$\orange{Identify \: the \: reducing} \\ \: agent \: in \: the \: following \: reaction.$
$\mathrm{4NH_{3} + 5O_{2} \implies 4NO + 6H_{2} O}$
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Answer 1

Explanation:

$\fbox\pink{A}\fbox\blue{n}\fbox\purple{s}\fbox\green{w}\fbox\red{e}\fbox\orange{r}$

(tex) O² is the answer(/tex)