Why is the bleaching action of Cl2 permanent whereas that of SO2 temporary?

Asked by Muhsina Mohamed | 8th Mar, 2013, 12:25: PM

Expert Answer:

Bleaching action of Cl2 is due to nascent O while SO2 is nascent H so if the bleached article by SO2 exposed to air the reverse process takes place so ,bleaching bySO2 is temporary.

Answered by  | 8th Mar, 2013, 07:08: PM

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