(D) $SO_2$ acts as a bleaching agent due to its reducing property.$SO_2 + 2H_2O \to H_2SO_4 + 2[H]$$\text{Coloured matter} + 2[H] \to \text{Colourless

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(D) $SO_2$ acts as a bleaching agent due to its reducing property.$SO_2 + 2H_2O \to H_2SO_4 + 2[H]$$\text{Coloured matter} + 2[H] \to \text{Colourless matter}$This reduction process removes the oxygen from the coloured substance,making it colourless.