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On addition of cone. H2SO4 to a chloride salt, colourless fumes are evolved but in case of iodide salt, violet flames come out. This is because [NCERT Exemplar] (a) H2SO4 reduces HI to I2 (b) HI is of violet colour (c) HI gets oxidised to I2 (d) HI changes to HIO3 |
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