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JEE Advanced Chemistry question

ChemistryThe p-Block ElementsJEE Advanced

Consider the following compounds I. Sulphur dioxide II. Hydrogen peroxide III. Ozone Among these compounds, those which can act as bleaching agents would include

Answer: (C)

Solution

Both SO2 and H2O2 are the classic textbook bleaching agents referenced here: H2O2 bleaches by oxidation (e.g. PbS (black) + 4H2O2 → PbSO4 (white) + 4H2O), and SO2 bleaches by

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Question ID VK-159427