NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Number of electrons in 3

d

-orbital of

{\mathrm{V}^{2 + }},\mathrm{\;C}{\mathrm{r}^{2 + }},\mathrm{\;M}{\mathrm{n}^{2 + }}

, and

\mathrm{F}{\mathrm{e}^{2 + }}

are 3, 4, 5 and 6 respectively. Which of the following ions will have largest value of magnetic moment

\left( \mathrm{\mu } \right)

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Correct option: C

\mathrm{M}{\mathrm{n}^{2 + }}

Option C is correct because Mn2+ has 5 unpaired electrons in its 3d orbitals, resulting in the largest magnetic moment according to the formula μ = √n(n+2) BM, where n is the number of unpaired electrons.

NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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