1.

The gas that can readily decolourise acidified KMnO_(4) solution is….

Answer»

<P>`NO_(2)`
`SO_(2)`
`CO_(2)`
`P_(2)O_(5)`

SOLUTION :`2MnO_(4)^(-) + 5SO_(2) + 2H_(2)O rarr 5SO_(4)^(2-) + 4H^(+) + 2Mn^(2+)`


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