CBSE BOARD XII, asked by lalitrikhari2512, 1 year ago

Bleaching action of SO2 is not permanent why?
give short answer pls

Answers

Answered by GôldGrâće
0

♡HOLA FRIENDS ♡

----->HERE YOUR ANSWER <-----

Bleaching by sulphur dioxide is temporary as atmospheric oxygen re-oxidizes the bleached matter after some time. ... The bleaching action sulphur dioxide is due to its reducingaction. The colour of pigment on exposure to SO2 gets reduced to a colourless compound.

^^HOPE IT IS HELPFUL ^^

Answered by kausijaanu2001
0

When chlorine reacts with water, it produces nascent oxygen. ... It removes oxygen from the dye. However, the atmospheric oxygen slowly reoxides the bleached material, because of which the bleached material changes to its original colour. This is why bleaching by sulphur dioxide is not permanent.Oct

Similar questions