SO2 + 2H2S ? 2H2O + 3S
Which substance is oxidised, reduced, oxidizing agent, reducing agent ?

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Solution

$S O_{2} + 2 H_{2} S \to 2 H_{2} O + 3 S S O_{2} u n d e r g o e s r e d u c t i o n a s t h e r e i s r e m o v a l o f o x y g e n . S o i t a c t s a s a n o x i d i \sin g a g e n t . H_{2} S u n d e r g o e s o x i d a t i o n a s t h e r e i s r e m o v a l o f h y d r o g e n . S o i t a c t s a s a r e d u c i n g a g e n t$

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SO2 + 2H2S ? 2H2O + 3S Which substance is oxidised, reduced, oxidizing agent, reducing agent ?

SO2 + 2 H2S → 2 H2O + 3 SSO2 undergoes reduction as there is removal of oxygen. So it acts as an oxidising agent.H2S undergoes oxidation as there is removal of hydrogen. So it acts as a reducing agent

SO2 + 2H2S ? 2H2O + 3S
Which substance is oxidised, reduced, oxidizing agent, reducing agent ?