How will you distinguish between sulphite and sulphate ions?

Explanation

`BaCl^(2)` gives a white precipitate with both sulphite and sulphate ions.
`BaSO_(3)` is soluble in conc. HCl whereas `BaSO_(4)` is insoluble in conc. HCl.
`SO_(3)^(2-)+MnO_(4)^(-) + H^(+) to Mn^(2+)` (colourless)
`SO_(4)^(2-)+MnO_(4)^(-) +H^(+) to ` (No colour change)