In which reaction, hydrogen peroxide neither acts as an oxidising agen

1.	In which reaction, hydrogen peroxide neither acts as an oxidising agent nor as a reducing agent ?
Answer» `PbS+H_(2)O_(2)to` `SO_(3)^(-)+H_(2)O_(2)to` `PbO_(2)+H_(2)O_(2)to` `Na_(2)CO_(3)+H_(2)O_(2)to` ANSWER :D

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