Complete the following equations :
(a) `5SO_(2) + MnO_(4) ^(-)+2H_(2)O to 5SO_(4)^(-) + 4H^(+) + ?`
(b)` SO_(3) + Conc. H_(2)SO_(4) to ?`
(c) `2KClO_(3)` `overset(MnO_(2))to `?

Explanation

(a) `5SO_(2) + MnO_(4) ^(-)+2H_(2)O to 5SO_(4)^(-) + 4H^(+) + 2Mn`
(b) `5SO_(3) + Conc. H_(2)SO_(4) to H_(2)S_(2)O_(7)`
(c) `2KCIO_(3) overset(MnO_(2))(to) 2KCl + 3O_(2)`