Question

$SO_2$ acts as temporary bleaching agent but $Cl_2$ acts as permanent bleaching agent. Why ?

• A. $Cl_2$ bleaches due to reduction but $SO_2$ due to oxidation
• B. $Cl_2$ bleaches due to oxidation but $SO_2$ due to reduction
• C. Both (A) and (B)
• D. None of these

Answer 1

Answer: (B)

$Cl_2$ bleaches due to oxidation but $SO_2$ due to reduction

Answer 2

Chlorine bleaches by oxidation while $SO_2$ by reduction.