Q. Bleaching action of SO_{2} is due to its

A) Oxidizing property
B) Acidic property
C) Basic property
D) Reducing property
Explanation

(d)
SO_{2} acts as bleaching agent due to its reducing property.
SO_{2} +2H_{2}O⟶H_{2}SO_{4}+2H
Coloured matter +[H] ⟶colourless matter.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.