Question
What is the oxidation number of nitrogen atom in $N _3 H$ ?
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Answer
$-1 / 3$
$\begin{array}{l} N _3 H \\ 3 x+1=0 \\ x=\frac{-1}{3}\end{array}$
$\begin{array}{l} N _3 H \\ 3 x+1=0 \\ x=\frac{-1}{3}\end{array}$
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