Question

SO2 act as both oxi.and red. agent but SO4 act as only oxi agent.Why ?

Answer 1

Explanation:

S in SO2 in +4 oxn. state but +6 in SO4. so, the letter is in it's maximum oxn. state, that's why it behaves as oxidising agent

Answer 2

☺ａｎｓｗｅｒ:

SO2 =+4

SO4. =+6

so2 can still be oxi and red

but SO4 S +6 is maximum oxidation state of sulfur