Question

How many molecules of co2 are contained in 1 litre of air if the volume content of co2 is 0.03% at ntp?

Answer 1

Explanation:

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 reducing action. The colour of pigment on exposure to SO2 gets reduced to a colourless compound.