# Which is correct paramagnetic order?

$(a)\;Mn > Cr > Zn\qquad(b)\;Fe > Zn > CO\qquad(c)\;Cr > Fe > Zn\qquad(d)\;Hg > Mn > Fe$

$Cr,Mn,Fe,Zn,Hg,CO$ have 6,5,4,0,0,3 unpaired electrons respectively.
Hence (c) is the correct answer.