MCQ
The oxidation state of $N$ in $HNO _{4}$ is
  • A
    $+7$
  • $+5$
  • C
    $-3$
  • D
    $+3$

Answer

Correct option: B.
$+5$
b
$HNO _{2} O _{2}$ (one Peroxybond)

$+1+N+2(-2)+2(-1)=0$

$N=+5$

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