Which is not paramagnetic?

Paramagnetism is related to number of unpaired electrons. Among O_2 and O_2^(-) which is more paramagnetic?

Out of V^(2+) and V^(3+) which is more paramagnetic and why ?

Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why?

Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why ?

Which ion is paramagnetic

Which is paramagnetic ?

Which is paramagnetic ?

Which is paramagnetic?

Which one is paramagnetic species -