Consider the transition metal ions Mn³⁺, Cr³⁺, Fe³⁺ and Co³⁺ and… | JEE Main 2026 Chemistry PYQ

MCQEasyJEE Main 2026 · 22 January, Shift 1Crystal Field Theory

Consider the transition metal ions $Mn^{3+}$ , $Cr^{3+}$ , $Fe^{3+}$ and $Co^{3+}$ and all form low spin octahedral complexes. The correct decreasing order of unpaired electrons in their respective $d$ -orbitals of the complexes is

A
$Cr^{3+} > Mn^{3+} > Fe^{3+} > Co^{3+}$
B
$Fe^{3+} > Co^{3+} > Mn^{3+} > Cr^{3+}$
C
$Mn^{3+} > Fe^{3+} > Co^{3+} > Cr^{3+}$
D
$Cr^{3+} > Fe^{3+} > Co^{3+} > Mn^{3+}$

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