Among the following, the species having the smallest bond is
Among the following, the species having the smallest bond is
$\mathrm{NO}^{-}$
$\mathrm{NO}^{+}$
$\mathrm{O}_2$
$\mathrm{NO}$
Solution
$\mathrm{NO}^{-}(16)-$ B.O. $-2 \quad \mathrm{O}_2(16)-$ B.O. $-2$ $\mathrm{NO}^{+}(14)-$ B.O. $-3 \quad \mathrm{NO}(15)-$ B.O. $-2.5$ Higher the bond order lower is the bond length. Hence $\mathrm{NO}^{+}$will have smallest bond.