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Home » When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:     In this reaction, which substance is oxidized and which one is reduced?
When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:

    \[\mathbf{S}{{\mathbf{O}}_{\mathbf{2}}}~+\text{ }\mathbf{2}{{\mathbf{H}}_{\mathbf{2}}}\mathbf{S}\text{ }\to \text{ }\mathbf{2}{{\mathbf{H}}_{\mathbf{2}}}\mathbf{O}\text{ }+\mathbf{3S}\]


In this reaction, which substance is oxidized and which one is reduced?
CBSE | Chemical Reactions and Equations | Chemistry | Class 10 | Lakhmir Singh
When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:

    \[\mathbf{S}{{\mathbf{O}}_{\mathbf{2}}}~+\text{ }\mathbf{2}{{\mathbf{H}}_{\mathbf{2}}}\mathbf{S}\text{ }\to \text{ }\mathbf{2}{{\mathbf{H}}_{\mathbf{2}}}\mathbf{O}\text{ }+\mathbf{3S}\]


In this reaction, which substance is oxidized and which one is reduced?

SO2 + 2H2S → 2H2O +3S

In the reaction above, H2S got oxidized as Hydrogen was removed from the molecule while SO2 got reduced because Oxygen was removed.

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