One gas bleaches the colour of flowers by red | vedclass

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(D) $SO_2$ acts as a bleaching agent by the process of reduction,whereas $Cl_2$ acts as a bleaching agent by the process of oxidation.$SO_2$ reacts wi

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$SO_2$ and $Cl_2$

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(D) $SO_2$ acts as a bleaching agent by the process of reduction,whereas $Cl_2$ acts as a bleaching agent by the process of oxidation.$SO_2$ reacts with water to produce nascent hydrogen,which reduces the coloured matter to a colourless substance:$SO_2 + 2H_2O \rightarrow H_2SO_4 + 2[H]$$Cl_2$ reacts with water to produce nascent oxygen,which oxidizes the coloured matter to a colourless substance:$Cl_2 + H_2O \rightarrow 2HCl + [O]$Therefore,the correct option is $D$.

One gas bleaches the colour of flowers by reduction while the other by oxidation. The two gases respectively are:

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