Transition elements

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By Expert Faculty of Sri Chaitanya

Question

The oxidation number of $Mn$ in the product of alkaline oxidative fusion of ${MnO}_{2}$ , is

Moderate

Solution

The oxidation number of $Mn$ in the product of alkaline oxidative fusion of ${MnO}_{2}$ is 6.
$2 {MnO}_{2} + 4 KOH + O_{2} ⟶ 2 K_{2} {MnO}_{4} + 2 H_{2} O$
In $K_{2} {MnO}_{4},$ the oxidation state of $Mn$ is $+ 6$ .

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