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Describe the reaction involved in the detection of Nitrogen in an organic compound by Lassaigne Method |
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Answer» Solution :DETECTION of Nitrogen: The following reactions art: involved in the detection of nitrogen with formation of PRUSSIAN blue precipitate conforming the presence of nitrogen in an organic compound `(i) underset("sodium")Na+underset("From organic Compund")"C+N" rarr underset("Sodium eyanide")"NaCN"` `underset("FERROUS sulphate")(FeSO_(4))+underset("Sodium hydrox")"2NaOH" rarr underset("Ferrous hydroxide")(FE(OH)_(2))+Na_(2)SO_(4)` `(iii)6 NaCN + Fe (OH)_(2) rarr underset("Sodium hydroxide")(Na_(4)[Fe(CN)_6] )+2NaOH` `(iv) 3Na_(4)[Fe(CN)_(6)]+4FeCl_(3) rarr underset(underset("(Prussian blue precipitate)")"Ferric ferrcyanide")(Fe_(4) [ Fe(CN)_(6)]darr+12NaCl` |
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