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CGP EDU Academic Team
Published on: August 12, 2026
How will you distinguish between sulphite and sulphate ions ?
Text Solution
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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 + ⎯→ Mn 2+ (colourless)
SO 4 2– + MnO 4 – + H + ⎯→ (No colour change)
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