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For testing halogens in an organic compo...

For testing halogens in an organic compound with `AgNO_(3)` solution, sodium extract (Lassaigne's test) is acidified with dilute `HNO_(3)`. What will happen if a student acidifies the extract with dilute `H_(2)SO_(4)` in place of dilute `HNO_(3)` ?

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If the Lassaigne's extract is acidified with dil. `H_(2)SO_(4)`, instead of dil. `HNO_(3)`, then the addition of `AgNO_(3)` will produce while ppt. of `Ag_(2)SO_(4)` which may be mistaken for while ppt. of AgCl due to the presence of chlorine.
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