Chemistry - Complete Pblock- Question with Solution | TestHub

Here two gases are$\mathrm{S}{\mathrm{O}}_2$and$\mathrm{C}{\mathrm{l}}_2$and they are bleaching agents
Aqueous solution of$\mathrm{S}{\mathrm{O}}_2$acts as a reducing agent
${\text{SO}}_{\text{2}}\text{+}{\text{2H}}_{\text{2}}\text{O}\to {\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\text{+}\underset{\text{Nascent }\text{hydrogen}}{\text{2H}}$
Thus,$\mathrm{S}{\mathrm{O}}_2$in presence of moisture is used as bleaching agent. This is due to the reducing nature of$\mathrm{S}{\mathrm{O}}_2$. For delicate articles
Coloured matter$+\mathrm{H}\to$Colourless matter.