1.

On adding of conc. H_(2)SO_(4)ot a chloride salt colourless fumes are evolved but in case of iodide salt. Violet fumes come out. This is because

Answer»

HIis of violet colour
HI gets oxidised to `I_(2)`
HI changes to `HIO_(3)`
`H_(2)SO_(4)` reducesHI to `I_(2)`

Solution :HI gets oxidised to `I_(2).2I^(-)+H_(2)SO_(4) to SO_(4)^(2o+)+2HI,`
`H_(2)SO_(4) to H_(2)O+SO_(2)+(O), 2HI+O to H_(2)O +I_(2)`


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