In \(N O \rightarrow N O^{+}\) electrons is removed from anti bonding molecular orbital so bond order increases and nature changes from paramagnetic to diamagnetic.
$NO _{3}^{-}, H _{2} O _{2}, BF _{3}, PCl _{3}, XeF _{4},SF _{4}, XeO _{3}, PH _{4}^{+}, SO _{3},\left[ Al ( OH )_{4}\right]^{-}$