Identify the homoleptic complexes with odd number of d electrons in the central metal :
(A) ${\left[Fe{O}_{4}\right]}^{2-}$
(B) ${\left[Fe(CN{)}_{6}\right]}^{3-}$
(C) ${\left[Fe(CN{)}_{5}NO\right]}^{2-}$
(D) ${\left[CoC{l}_{4}\right]}^{2-}$
(E) $\left[Co{\left({H}_{2}O\right)}_{3}{F}_{3}\right]$

Choose the correct answer from the options given below

[JEE Main 2025, 29 Jan (Shift 2)]

Question

Identify the homoleptic complexes with odd number of d electrons in the central metal :
(A) ${\left[Fe{O}_{4}\right]}^{2-}$
(B) ${\left[Fe(CN{)}_{6}\right]}^{3-}$
(C) ${\left[Fe(CN{)}_{5}NO\right]}^{2-}$
(D) ${\left[CoC{l}_{4}\right]}^{2-}$
(E) $\left[Co{\left({H}_{2}O\right)}_{3}{F}_{3}\right]$

Choose the correct answer from the options given below

[JEE Main 2025, 29 Jan (Shift 2)]

YESPYQ · Accepted Answer

Correct answer: d) (B) and (D) only. The complexes ${\left[Fe(CN{)}_{6}\right]}^{3-}$ and ${\left[CoC{l}_{4}\right]}^{2-}$ have odd-numbered d-electrons .

Identify the homoleptic complexes with odd number of d electrons in the central metal : (A) \({\left[Fe{O}_{4}\right]}^{…

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