On addition of conc. H_(2)SO_(4) to a chloride salt, colourless fumes – InterviewSolution

1.	On addition of conc. H_(2)SO_(4) to a chloride salt, colourless fumes are evolved but in case of iodide salt, violet fumes come out. This is because
Answer» `H_(2)SO_(4)` reduces HI to `I_(2)` HI is of violet colour HI gets oxidised to `I_(2)` HI changes to `HIO_(3)` SOLUTION :HI being a stronger reducing AGENT than `H_(2)SO_(4)`, reduces `H_(2)SO_(4)` to `SO_(2)` and is itself oxidised to `I_(2)`.

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