Question

SO2 acts as a reducing as well as an oxidizing agent whereas SO3 acts only as an oxidizing agent. Why ???​

Answer 1

This is because in SO2 , Sulphur has vacant d orbital but this is not so in SO3 . Hence it acts only as an oxidizer . If SO3 acted as a reducing agent , it would achieve an oxidation higher than what is already has in SO3 .

ㅤㅤㅤㅤㅤㅤㅤㅤOR

In SO2 sulphur having oxidation state +4 so it can lose its two more electrons to attain+6 oxidation state. Therefore it can lose and gain electron therefore it acts as oxidising as well as reducing agent.

$\\ \\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$

Answer 2

SO2 can act as both oxidising as well as reducing agent because it has (+4) oxidation state, which is exactly between its highest O.S. (+6) and lowest O.S. (+2).

SO2 can act as both oxidising as well as reducing agent because it has (+4) oxidation state, which is exactly between its highest O.S. (+6) and lowest O.S. (+2).Hence, it can change its oxidation no. either from (+4) to (+2) [Reduction] or from (+4) to (+6) [Oxidation]. Whereas SO3 is already in it's highest O.S.and hence can only reduce its oxidation number.

Hope It Helps ☺️

Mark Me As Brainliest ❤️