MCQ
In which process does the nitrogen undergo oxidation?
  • A
    ${N_2} \to 2N{H_3}$
  • B
    $N_2O_4 \to 2NO_2$
  • C
    $NO_3^- \to  N_2O_5$
  • $NO_2^- \to  NO_3^-$

Answer

Correct option: D.
$NO_2^- \to  NO_3^-$
d
$\overset{+3}{\mathop{N}}\,O_{2}^{-}\xrightarrow{Oxidation}\overset{+5}{\mathop{N}}\,O_{3}^{-}$

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