How would you detect the halogens in an organic compound?

1.	How would you detect the halogens in an organic compound?
Answer» Solution :(i) To a portion of the Lassaigne.s filtrate. DIL. `HNO_(3)` is added, warmed gently and `AgNO_(3)` solution is added. (ii) Appearance of curdy white precipitate SOLUBLE in AMMONIA solution indicates the presence of chlorine. (iii) Appearance of pale YELLOW precipitate sparingly soluble in ammonia solution indicates the presence of bromine. (iv) Appearance of yellow precipitate insoluble in ammonia solution indicates the presence of iodine. `Na+Xoverset(Delta)rarrNaX` (where X=Cl, Br, I) `AgNO_(3)+NaXrarrAgXdarr+NaNO_(3)`

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