Why does SO2 acts as bleaching by reduction process ...???????????
Why does SO2 acts as bleaching by reduction process ...???????????
VIDYARANI SINGADI , 7 Years ago
Grade 12th pass
Inorganic Chemistry> Why does SO2 acts as bleaching by reducti...
1 Answers
Arun
The bleaching action sulphur dioxide is due to its reducing action. The colour of pigment on exposure to SO2 gets reduced to a colourless compound. On standing in an air the colourless reduced product is reoxidised and gain the original colour. Bleaching with sulphur dioxide is therefore of temporary nature.
Approved Last Activity: 7 Years ago
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