2MnO4 + H + 5HSO3 = 2Mn + 5HSO4 + 3H2O

Which is being oxidized and which is being reduced?

Well, it looks like we have a chemical equation here. So, let's see who's getting a makeover! In this equation, MnO4 is being reduced to Mn, so it goes from a higher oxidation state to a lower one. Meanwhile, HSO3 is being oxidized to HSO4, which means it's gaining oxygen and getting all fancy. So, MnO4 is the lucky one getting reduced, while HSO3 is the unlucky one getting oxidized. Just like in life, some chemicals get to shine while others have to face the consequences of oxidation!