$SO_2$ is obtained when:

Consider the following sulphur-based oxoacids: $H_2SO_3$,$H_2SO_4$,$H_2S_2O_8$,and $H_2S_2O_7$. Among these oxoacids,the number of those with a peroxo $(O-O)$ bond is $..........$

Which is the most stable crystalline form of sulfur at room temperature?

Provide information about simple oxides.

Discuss the physical and chemical properties of sulphuric acid.

Although oxygen is more electronegative than sulfur,$H_2S$ is acidic while $H_2O$ is neutral. This is because ..........