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The spinonly magnetic moment value of the compound with... | null (Chemistry) | DivineJEE

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Chemistry

Exam

Chemistry

The spin-only magnetic moment value of the compound with strongest oxidizing ability among $\mathrm{MnF}_{4}, \mathrm{MnF}_{3}$ and $\mathrm{MnF}_{2}$ is ____________ B.M. [nearest integer]

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Correct Answer:

Explanation

\mathrm{MnF}_{3}

has the strongest oxidizing ability

\left[\begin{array}{l} \mathrm{E}_{\mathrm{Mn}^{+3} / \mathrm{Mn}^{+2}}^{\circ} \simeq 1.57 \mathrm{~V} \\ \& \,\,\mathrm{E}_{\mathrm{Mn}^{+4} / \mathrm{Mn}^{+2}}^{\circ} \simeq 1.2 \mathrm{~V} \end{array}\right]

So, spin only magnetic moment

=\sqrt{4(4+2)}=\sqrt{24} \text { B.M. }

\simeq 5

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