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Reactivity with Halogens (Group 1)

When MnO2 i...

Question

When $M n O_{2}$ is fused with $K O H$ and $K C l O_{3}$ , a colored compound is formed, the product and its color is:

A

K_{2} M n O_{4}

, green.

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B

K M n O_{4}

, purple.

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C

{M n}_{2} O_{3}

, green.

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D

{M n}_{3} O_{4}

, black.

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Solution

The correct option is A $K_{2} M n O_{4}$ , green.
$3 M n O_{2} + K C l O_{3} + 6 K O H \to 3 K_{2} M n O_{4} + K C l + 3 H_{2} O$
$K_{2} M n O_{4}$ is green in color.

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