Peroxo acids of sulphur are:

When an inorganic compound reacts with $SO_2$ in an aqueous medium,it produces $(A)$. $(A)$ on reaction with $Na_2CO_3$ gives compound $(B)$,which with sulphur,gives a substance $(C)$ used in photography. Compound $(C)$ is:

Explain why ozone $(O_3)$ is thermodynamically less stable than oxygen $(O_2)$?

How does $SO_2$ gas behave when it is moist?

Write a preparation of dioxygen. Explain the physical and chemical properties of dioxygen. State uses of dioxygen.

The quantitative estimation of $O_3$ is based on