MHT CET · Chemistry · Redox Reactions
What is the change in oxidation number of nitrogen in following conversion?
\( \mathrm{NO}_3^{-} \longrightarrow \mathrm{NO}_2 \)
- A +4 to +5
- B +3 to +5
- C +5 to +4
- D -3 to +5
Answer & Solution
Correct Answer
(C) +5 to +4
Step-by-step Solution
Detailed explanation
Oxidation number of Nitrogen in
\(\underset{\mathrm{x}}{\mathrm{NO}_3^{-}} \Rightarrow \mathrm{x}-2 \times 3=-1\)
\(\begin{aligned} & x=+5 \\ & \mathrm{NO}_2 \Rightarrow \mathrm{y}-2 \times 2=0 \\ & \mathrm{y}=+4\end{aligned}\)
\(\underset{\mathrm{x}}{\mathrm{NO}_3^{-}} \Rightarrow \mathrm{x}-2 \times 3=-1\)
\(\begin{aligned} & x=+5 \\ & \mathrm{NO}_2 \Rightarrow \mathrm{y}-2 \times 2=0 \\ & \mathrm{y}=+4\end{aligned}\)
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