MCQ
The oxidation state of nitrogen in $\text{NaNO}_3$ is :
- A$+3$
- ✓$+5$
- C$−4$
- D$−5$
✓
Answer
Correct option: B.
$+5$
The overall charge is zero $($because it is not an ion$).$
Since sodium is a $1A$ family member, the charge is $+1.$
The charge of oxygen is almost always $-2.$
Hence, $1 + \text{OS}$ of $N + (3 \times −2) = 0$
Since sodium is a $1A$ family member, the charge is $+1.$
The charge of oxygen is almost always $-2.$
Hence, $1 + \text{OS}$ of $N + (3 \times −2) = 0$
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