When pyrolusite is fused with $K O H$ and $K C l O_{3}$ , we get:

K M n O_{4}

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K_{2} M n O_{4}

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Both

K M n O_{4}

and

K_{2} M n O_{4}

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None of these

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Solution

The correct option is C Both $K M n O_{4}$ and $K_{2} M n O_{4}$
$K C l O_{3} + 2 M n O_{2} + 2 K O H \to H_{2} O + K C l + 2 K M n O_{4}$

$3 M N O_{2} + K C l O_{3} + 6 K O H \to 3 K_{2} M N O_{4} + K C l + 3 H_{2} O$

When pyrolusite is fused with $K O H$ and $K C l O_{3}$ we get $K M n O_{4}$ and $K_{2} M n O_{4}$ .

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M n O_{2}

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M n O_{2}

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Potassium manganate $(K_{2} M n O_{4})$ is formed when:

$M n O_{2}$ when fused with KOH and oxidized in air gives a dark green compound X. In acidic X. In acidic solution, X undergoes disproportion to give an intense purple compound Y and $M n O_{2}$ . The compounds X and Y respectively, are

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When pyrolusite is fused with KOH and KClO3, we get:

The correct option is C Both KMnO4 and K2MnO4KClO3+2MnO2+2KOH→H2O+KCl+2KMnO43MNO2+KClO3+6KOH→3K2MNO4+KCl+3H2OWhen pyrolusite is fused with KOH and KClO3 we get KMnO4 and K2MnO4.

When pyrolusite is fused with $K O H$ and $K C l O_{3}$ , we get: