Which of the following statement is/are correct?

$O_2$ is paramagnetic due to 2 unpaired electrons while $N_2\&O_2^{2-}$  are diamagnetic. In conversion of  $O_2\&O_2^{+}$ and $NO\to N{O}^{+}$ ,  $e^{-}$  from antibonding orbital $(C{N}^{-},N_2,N{O}^{+},C_2^{2-})$  is removed, thus bond order increases & bond length decreases.