Which of the following has unpaired electron $(s)$ ?
$N_2$
$O_2^ - $
$N_2^{2 + }$
$O_2^{2 - }$
During the conversion of peroxide ion to superoxide ion electron is removed from
Which of the following options represents the correct bond order?
Bond order of $1.5$ is shown by-
Among the following, the species having the smallest bond is
Which of the following is paramagnetic