Which one of the following is paramagnetic

Which one among the following is paramagnetic

Which of the following is a paramagnetic compound ?

Which of the following is a paramagnetic molecules?

Which of the following is paramagnetic

(i) Which one of the following is more paramagnetic Fe^(2+) or Fe^(3+)? Explain. (ii) What is the number of unpaired electrons in Mn^(2+) ion? (At.no. Mn= 25).