Question

What is $S{O_2}$ and $S{O_3}$ ?

Answer 1

Sulphur oxides are inorganic compounds that are entirely made up of sulphur and oxygen atoms. Sulphur dioxide ( $S{O_2}$ ) and sulphur trioxide are the most common sulphur oxides found in the Earth's lower atmosphere ( $S{O_3}$ ).

Complete answer:
Sulphur dioxide ( $S{O_2}$ ) is a gaseous chemical that is made up of sulphur and oxygen atoms. It is a colourless gas that's occasionally deadly and soluble in water. Exposure to excessive concentrations of this gas can be detrimental to living things. It has the potential to harm people' health.
Sulphur dioxide is an odourless, acidic gas with a strong, suffocating odour.
It is simple to liquefy.
It is highly soluble in water and has an acidic aqueous solution ( ${H_2}S{O_3}$ ).
It's a strong reducing agent that converts acidified ${K_2}C{r_2}{O_7}$ solution green colour and converts halogens to halogen acids.
$- {71^O}C$ and $- {10^0}C$ are the melting and boiling points, respectively.
It is used in the sugar industry to refine cane juice. It is also used for fumigation, germicide, and fruit preservation.
$S{O_3}$ stands for sulphur trioxide, a solid substance made up of one sulphur atom and three oxygen atoms.
When sulphur dioxide is oxidised, sulphur trioxide is formed. It is colourless when it is in liquid form. It's a highly reactive material that reacts strongly when it comes into contact with water.
It is an acidic oxide that forms ${H_2}S{O_4}$ when dissolved in water. As a result, it forms $CaS{O_4}$ from $CaO$ and decomposes carbonates to release $CO$ .
Chlorosulphonic acid ( $HOS{O_2}Cl$ ) is formed when it interacts with $HCl$ .
It has a significant oxidising effect.
${16.9^0}C$ and ${45^0}C$ are the melting and boiling points, respectively.
It is used to make sulphuric acid and other compounds.
In sulfonation reactions, it is an essential reagent.

Note:
Sulphur oxides are generated when sulphur-containing compounds are burned in an oxygen-rich environment. It's found in the roasting of sulphide ores, the burning of fossil fuels, coals, and other processes. Vehicle emissions are one of the most common sources of sulphur dioxide that we can relate to.