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Manganeese Dioxide Test

An acidified ...

Question

An acidified solution of $K M n O_{4}$ oxidizes :

sulphates

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oxalates

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iodine

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ferric salts

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Solution

The correct option is B oxalates
The acidified solution of $K M n O_{4}$ oxidizes oxalic acid and oxalates.
$5 H_{2} C_{2} O_{4} (a q) + 2 M n O_{4}^{-} (a q) + 6 H^{+} (a q) \to 10 C O_{2} (g) + 2 M n^{2 +} (a q) + 8 H_{2} O (l)$
It also oxidizes ferrous salts, sulphites and iodides.

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