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Question
The reaction H2S+H2O22H2O+S shows
 
Options:
A .  Oxidizing action of H2S
B .  Reducing action of H2S
C .  Alkaline nature of H2S
D .  Acidic nature of H2S
Answer: Option B
:
B
In this reactionH2O2 acts as an oxidising agent and H2S acts as a reducing agent as sulphur gains electron and changes its oxidation state from -2 to 0. As its oxidation state increases, it reduces other reactants.

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