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🛠️ JEE🧪 Chemistry

Consider the transition metal ions \({\text{Mn}}^{3+},{\text{Cr}}^{3+},{\text{Fe}}^{3+}\) and Co 3+ and all form low spi…

Q1

Consider the transition metal ions \({\text{Mn}}^{3+},{\text{Cr}}^{3+},{\text{Fe}}^{3+}\) and Co3+ and all form low spin octahedral complexes. The correct decreasing order of unpaired electrons in their respective d-orbitals of the complexes is

[JEE Main 2026, 22 Jan (Shift 1)]

a

\({\text{Cr}}^{3+}>{\text{Mn}}^{3+}>{\text{Fe}}^{3+}>{\text{Co}}^{3+}\)

b

\({\text{Fe}}^{3+}>{\text{Co}}^{3+}>{\text{Mn}}^{3+}>{\text{Cr}}^{3+}\)

c

\({\text{Mn}}^{3+}>{\text{Fe}}^{3+}>{\text{Co}}^{3+}>{\text{Cr}}^{3+}\)

d

\({\text{Cr}}^{3+}>{\text{Fe}}^{3+}>{\text{Co}}^{3+}>{\text{Mn}}^{3+}\)

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