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JEE Main 202528 JanuaryEvening Shift

Exam: JEE Main
Year: 2025
Date: 28 January
Shift: Evening Shift
Subject: Chemistry
Chapter: d and f Block Elements

JEE Main 2025 · 28 January · Evening Shift · Chemistry · d and f Block Elements

The spin only magnetic moment ( μ ) value (B.M.) of the compound...

The spin only magnetic moment (

\mu

) value (B.M.) of the compound with strongest oxidising power among

\mathrm{Mn}_2 \mathrm{O}_3, \mathrm{TiO}

and VO is ____ B.M. (Nearest integer).

Correct answer

0

Step-by-step solution

Strongest oxidising power among the option is

\mathrm{Mn}_2 \mathrm{O}_3 because

of

\mathrm{E}^{ \circ}

value

\begin{aligned} & \mathrm{E}_{\mathrm{Mn}^{+3} / \mathrm{Mn}^{+2}}^{\circ}=+1.57 \mathrm{ V} \\ & \mathrm{Mn}^{+3} \rightarrow \mathrm{ d}^4 \text{ configuration } \\ & \mu=\sqrt{24} \mathrm{BM} \\ & =4.89 \mathrm{BM} \\ & \Rightarrow 5 \end{aligned}

$

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