Chemistry · 2011
NEET 2011 · Prelims · Code A · Q75
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order?…
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + $\displaystyle 2$ oxidation state will be there in which of the following order ?
(At. nos. $\displaystyle \mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26, \mathrm{Co}=27$ )
Official answer
(2)
$\displaystyle \mathrm{Mn}>\mathrm{Fe}>\mathrm{Cr}>\mathrm{Co}$
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