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Which is correct paramagnetic order?

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

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$Cr,Mn,Fe,Zn,Hg,CO$ have 6,5,4,0,0,3 unpaired electrons respectively.
Hence (c) is the correct answer.
answered Jan 10, 2014 by sreemathi.v
 

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