what is the difference between the bleaching action in chlorine and in sulphur dioxide
Answers
Answer:Both sulphur dioxide and chlorine are good bleaching agents. Bleaching action of chlorine is based on oxidation while that of sulphur is based on reduction. Chlorine acts with water to produce nascent oxygen. ... Sulphour dioxide removes oxygen from the coloured substance and makes it colourless.
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Answer:
Sulphur dioxide is a temporary bleaching agent, unlike Chlorine, which is a permanent bleaching agent.
Explanation:
This is because the mechanism for bleaching is different
SO2---Reduction => Temporary
Cl2---Oxidation => Permanent
Sulpher dioxide removes oxygen from the coloured substance and makes it colourless. But atmospheric oxygen slowly takes place of the removed oxygen and because of which the material regains the colour