MCQ
Among the oxides of nitrogen, $N_2 O,NO$ nnd $NO_2$ ,molecules with unpaired electrons are
  • A
    $N_2O$ and $NO$
  • $NO$ and $NO_2$
  • C
    $N_2O$ and $NO_2$
  • D
    $NO_2$ and lts dimer

Answer

Correct option: B.
$NO$ and $NO_2$
b
Among the oxides of nitrogen, only $NO$ and $NO _2$ contains odd number of electrons. i.e contains unpaired electrons.

$N _2 O =14+8=$ total $22$ electrons (even electrons)

$NO =7+8=$ total $15$ electrons

$NO _2=7+16=$ total $23$ electrons

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