When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:SO2 + 2H2S -----> 2H2O + 3S In this reaction, which substance is oxidised and which one is reduced?
$SO_{2} \ +\ 2H_{2} S\rightarrow \ 2H_{2} O\ +\ 3S\ $
In the above reaction, SO2 is reduced to S, as it loses oxygen.
H2S is oxidised to H2O, as it gains oxygen.
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