Ozone is used as a`//`an

Options

A. bleaching agent
B. oxidizing agent
C. deisnfectant
D. All of these

Answer

4

Explanation

It is used for bleaching oils ,flour,ivory ,wax, starch and delicate fabrics,Due to the ease with which it liberates atoms of nascent oxygen `(O_(3)rarrO_(2)+O)`, it acts as a powerful oxidizing agent:
`2NO_(2)+O_(3)rarrN_(2)O_(5)+O_(2)`
In most of the reactions,`O_(2)` is evolved but there are two reactions in which whole of the oxygen is used up in the process of oxidation:
`3SO_(2)+O_(3)rarr3SO_(3)`
`3SnCl_(2)+6HCl+O_(3)rarr3SnCl_(4)+3H_(2)O`
Ozone is used as a disinfectant.For example ,it is used to purify drinking water ,since it destroys bacteria and viruses. Its advantage over `Cl_(2)` for this purpose is that it avoids the unpleasant smell and taste of `Cl_(2)` ,since any excess `O_(3)` soon decomposes to `O_(2)`. For similar reasons it is used to treat water in swimming pools.