Which of the following are odd-electron molecules? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

$NO$ (11 $e^-$), $ClO_2$ (19 $e^-$), and $NO_2$ (17 $e^-$) all possess an odd number of valence electrons, leading to incomplete octets and paramagnetic behavior. $N_2O_4$ is a dimer of $NO_2$ with an even number of electrons.